21149310

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{127}}^1$

素因数の和:218

約数の個数: 128

約数和(自身を含む): 63995904

約数和(自身を除く): 42846594

約数列:

[1, 2, 3, 5, 6, 7, 10, 13, 14, 15, 21, 26, 30, 35, 39, 42, 61, 65, 70, 78, 91, 105, 122, 127, 130, 182, 183, 195, 210, 254, 273, 305, 366, 381, 390, 427, 455, 546, 610, 635, 762, 793, 854, 889, 910, 915, 1270, 1281, 1365, 1586, 1651, 1778, 1830, 1905, 2135, 2379, 2562, 2667, 2730, 3302, 3810, 3965, 4270, 4445, 4758, 4953, 5334, 5551, 6405, 7747, 7930, 8255, 8890, 9906, 11102, 11557, 11895, 12810, 13335, 15494, 16510, 16653, 23114, 23241, 23790, 24765, 26670, 27755, 33306, 34671, 38735, 46482, 49530, 54229, 55510, 57785, 69342, 77470, 83265, 100711, 108458, 115570, 116205, 162687, 166530, 173355, 201422, 232410, 271145, 302133, 325374, 346710, 503555, 542290, 604266, 704977, 813435, 1007110, 1409954, 1510665, 1626870, 2114931, 3021330, 3524885, 4229862, 7049770, 10574655, 21149310]

約数ペア:

[(1, 21149310), (2, 10574655), (3, 7049770), (5, 4229862), (6, 3524885), (7, 3021330), (10, 2114931), (13, 1626870), (14, 1510665), (15, 1409954), (21, 1007110), (26, 813435), (30, 704977), (35, 604266), (39, 542290), (42, 503555), (61, 346710), (65, 325374), (70, 302133), (78, 271145), (91, 232410), (105, 201422), (122, 173355), (127, 166530), (130, 162687), (182, 116205), (183, 115570), (195, 108458), (210, 100711), (254, 83265), (273, 77470), (305, 69342), (366, 57785), (381, 55510), (390, 54229), (427, 49530), (455, 46482), (546, 38735), (610, 34671), (635, 33306), (762, 27755), (793, 26670), (854, 24765), (889, 23790), (910, 23241), (915, 23114), (1270, 16653), (1281, 16510), (1365, 15494), (1586, 13335), (1651, 12810), (1778, 11895), (1830, 11557), (1905, 11102), (2135, 9906), (2379, 8890), (2562, 8255), (2667, 7930), (2730, 7747), (3302, 6405), (3810, 5551), (3965, 5334), (4270, 4953), (4445, 4758)]