21482008

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{47}}^1\times {\mathrm{97}}^1$

素因数の和:200

約数の個数: 64

約数和(自身を含む): 45158400

約数和(自身を除く): 23676392

約数列:

[1, 2, 4, 8, 19, 31, 38, 47, 62, 76, 94, 97, 124, 152, 188, 194, 248, 376, 388, 589, 776, 893, 1178, 1457, 1786, 1843, 2356, 2914, 3007, 3572, 3686, 4559, 4712, 5828, 6014, 7144, 7372, 9118, 11656, 12028, 14744, 18236, 24056, 27683, 36472, 55366, 57133, 86621, 110732, 114266, 141329, 173242, 221464, 228532, 282658, 346484, 457064, 565316, 692968, 1130632, 2685251, 5370502, 10741004, 21482008]

約数ペア:

[(1, 21482008), (2, 10741004), (4, 5370502), (8, 2685251), (19, 1130632), (31, 692968), (38, 565316), (47, 457064), (62, 346484), (76, 282658), (94, 228532), (97, 221464), (124, 173242), (152, 141329), (188, 114266), (194, 110732), (248, 86621), (376, 57133), (388, 55366), (589, 36472), (776, 27683), (893, 24056), (1178, 18236), (1457, 14744), (1786, 12028), (1843, 11656), (2356, 9118), (2914, 7372), (3007, 7144), (3572, 6014), (3686, 5828), (4559, 4712)]