21536970

素因数分解:

$2^1\times 3^1\times 5^1\times 7^4\times {\mathrm{13}}^1\times {\mathrm{23}}^1$

素因数の和:74

約数の個数: 160

約数和(自身を含む): 67761792

約数和(自身を除く): 46224822

約数列:

[1, 2, 3, 5, 6, 7, 10, 13, 14, 15, 21, 23, 26, 30, 35, 39, 42, 46, 49, 65, 69, 70, 78, 91, 98, 105, 115, 130, 138, 147, 161, 182, 195, 210, 230, 245, 273, 294, 299, 322, 343, 345, 390, 455, 483, 490, 546, 598, 637, 686, 690, 735, 805, 897, 910, 966, 1029, 1127, 1274, 1365, 1470, 1495, 1610, 1715, 1794, 1911, 2058, 2093, 2254, 2401, 2415, 2730, 2990, 3185, 3381, 3430, 3822, 4186, 4459, 4485, 4802, 4830, 5145, 5635, 6279, 6370, 6762, 7203, 7889, 8918, 8970, 9555, 10290, 10465, 11270, 12005, 12558, 13377, 14406, 14651, 15778, 16905, 19110, 20930, 22295, 23667, 24010, 26754, 29302, 31213, 31395, 33810, 36015, 39445, 43953, 44590, 47334, 55223, 62426, 62790, 66885, 72030, 73255, 78890, 87906, 93639, 102557, 110446, 118335, 133770, 146510, 156065, 165669, 187278, 205114, 219765, 236670, 276115, 307671, 312130, 331338, 439530, 468195, 512785, 552230, 615342, 717899, 828345, 936390, 1025570, 1435798, 1538355, 1656690, 2153697, 3076710, 3589495, 4307394, 7178990, 10768485, 21536970]

約数ペア:

[(1, 21536970), (2, 10768485), (3, 7178990), (5, 4307394), (6, 3589495), (7, 3076710), (10, 2153697), (13, 1656690), (14, 1538355), (15, 1435798), (21, 1025570), (23, 936390), (26, 828345), (30, 717899), (35, 615342), (39, 552230), (42, 512785), (46, 468195), (49, 439530), (65, 331338), (69, 312130), (70, 307671), (78, 276115), (91, 236670), (98, 219765), (105, 205114), (115, 187278), (130, 165669), (138, 156065), (147, 146510), (161, 133770), (182, 118335), (195, 110446), (210, 102557), (230, 93639), (245, 87906), (273, 78890), (294, 73255), (299, 72030), (322, 66885), (343, 62790), (345, 62426), (390, 55223), (455, 47334), (483, 44590), (490, 43953), (546, 39445), (598, 36015), (637, 33810), (686, 31395), (690, 31213), (735, 29302), (805, 26754), (897, 24010), (910, 23667), (966, 22295), (1029, 20930), (1127, 19110), (1274, 16905), (1365, 15778), (1470, 14651), (1495, 14406), (1610, 13377), (1715, 12558), (1794, 12005), (1911, 11270), (2058, 10465), (2093, 10290), (2254, 9555), (2401, 8970), (2415, 8918), (2730, 7889), (2990, 7203), (3185, 6762), (3381, 6370), (3430, 6279), (3822, 5635), (4186, 5145), (4459, 4830), (4485, 4802)]