21819525

素因数分解:

$3^1\times 5^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{139}}^1$

素因数の和:195

約数の個数: 96

約数和(自身を含む): 46663680

約数和(自身を除く): 24844155

約数列:

[1, 3, 5, 7, 13, 15, 21, 23, 25, 35, 39, 65, 69, 75, 91, 105, 115, 139, 161, 175, 195, 273, 299, 325, 345, 417, 455, 483, 525, 575, 695, 805, 897, 973, 975, 1365, 1495, 1725, 1807, 2085, 2093, 2275, 2415, 2919, 3197, 3475, 4025, 4485, 4865, 5421, 6279, 6825, 7475, 9035, 9591, 10425, 10465, 12075, 12649, 14595, 15985, 22379, 22425, 24325, 27105, 31395, 37947, 41561, 45175, 47955, 52325, 63245, 67137, 72975, 79925, 111895, 124683, 135525, 156975, 189735, 207805, 239775, 290927, 316225, 335685, 559475, 623415, 872781, 948675, 1039025, 1454635, 1678425, 3117075, 4363905, 7273175, 21819525]

約数ペア:

[(1, 21819525), (3, 7273175), (5, 4363905), (7, 3117075), (13, 1678425), (15, 1454635), (21, 1039025), (23, 948675), (25, 872781), (35, 623415), (39, 559475), (65, 335685), (69, 316225), (75, 290927), (91, 239775), (105, 207805), (115, 189735), (139, 156975), (161, 135525), (175, 124683), (195, 111895), (273, 79925), (299, 72975), (325, 67137), (345, 63245), (417, 52325), (455, 47955), (483, 45175), (525, 41561), (575, 37947), (695, 31395), (805, 27105), (897, 24325), (973, 22425), (975, 22379), (1365, 15985), (1495, 14595), (1725, 12649), (1807, 12075), (2085, 10465), (2093, 10425), (2275, 9591), (2415, 9035), (2919, 7475), (3197, 6825), (3475, 6279), (4025, 5421), (4485, 4865)]