21281190

素因数分解:

$2^1\times 3^1\times 5^1\times 7^2\times {\mathrm{31}}^1\times {\mathrm{467}}^1$

素因数の和:522

約数の個数: 96

約数和(自身を含む): 61461504

約数和(自身を除く): 40180314

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 30, 31, 35, 42, 49, 62, 70, 93, 98, 105, 147, 155, 186, 210, 217, 245, 294, 310, 434, 465, 467, 490, 651, 735, 930, 934, 1085, 1302, 1401, 1470, 1519, 2170, 2335, 2802, 3038, 3255, 3269, 4557, 4670, 6510, 6538, 7005, 7595, 9114, 9807, 14010, 14477, 15190, 16345, 19614, 22785, 22883, 28954, 32690, 43431, 45570, 45766, 49035, 68649, 72385, 86862, 98070, 101339, 114415, 137298, 144770, 202678, 217155, 228830, 304017, 343245, 434310, 506695, 608034, 686490, 709373, 1013390, 1418746, 1520085, 2128119, 3040170, 3546865, 4256238, 7093730, 10640595, 21281190]

約数ペア:

[(1, 21281190), (2, 10640595), (3, 7093730), (5, 4256238), (6, 3546865), (7, 3040170), (10, 2128119), (14, 1520085), (15, 1418746), (21, 1013390), (30, 709373), (31, 686490), (35, 608034), (42, 506695), (49, 434310), (62, 343245), (70, 304017), (93, 228830), (98, 217155), (105, 202678), (147, 144770), (155, 137298), (186, 114415), (210, 101339), (217, 98070), (245, 86862), (294, 72385), (310, 68649), (434, 49035), (465, 45766), (467, 45570), (490, 43431), (651, 32690), (735, 28954), (930, 22883), (934, 22785), (1085, 19614), (1302, 16345), (1401, 15190), (1470, 14477), (1519, 14010), (2170, 9807), (2335, 9114), (2802, 7595), (3038, 7005), (3255, 6538), (3269, 6510), (4557, 4670)]