21495840

素因数分解:

$2^5\times 3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{2357}}^1$

素因数の和:2394

約数の個数: 96

約数和(自身を含む): 71305920

約数和(自身を除く): 49810080

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 19, 20, 24, 30, 32, 38, 40, 48, 57, 60, 76, 80, 95, 96, 114, 120, 152, 160, 190, 228, 240, 285, 304, 380, 456, 480, 570, 608, 760, 912, 1140, 1520, 1824, 2280, 2357, 3040, 4560, 4714, 7071, 9120, 9428, 11785, 14142, 18856, 23570, 28284, 35355, 37712, 44783, 47140, 56568, 70710, 75424, 89566, 94280, 113136, 134349, 141420, 179132, 188560, 223915, 226272, 268698, 282840, 358264, 377120, 447830, 537396, 565680, 671745, 716528, 895660, 1074792, 1131360, 1343490, 1433056, 1791320, 2149584, 2686980, 3582640, 4299168, 5373960, 7165280, 10747920, 21495840]

約数ペア:

[(1, 21495840), (2, 10747920), (3, 7165280), (4, 5373960), (5, 4299168), (6, 3582640), (8, 2686980), (10, 2149584), (12, 1791320), (15, 1433056), (16, 1343490), (19, 1131360), (20, 1074792), (24, 895660), (30, 716528), (32, 671745), (38, 565680), (40, 537396), (48, 447830), (57, 377120), (60, 358264), (76, 282840), (80, 268698), (95, 226272), (96, 223915), (114, 188560), (120, 179132), (152, 141420), (160, 134349), (190, 113136), (228, 94280), (240, 89566), (285, 75424), (304, 70710), (380, 56568), (456, 47140), (480, 44783), (570, 37712), (608, 35355), (760, 28284), (912, 23570), (1140, 18856), (1520, 14142), (1824, 11785), (2280, 9428), (2357, 9120), (3040, 7071), (4560, 4714)]