21387360

素因数分解:

$2^5\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{2621}}^1$

素因数の和:2656

約数の個数: 96

約数和(自身を含む): 71360352

約数和(自身を除く): 49972992

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 17, 20, 24, 30, 32, 34, 40, 48, 51, 60, 68, 80, 85, 96, 102, 120, 136, 160, 170, 204, 240, 255, 272, 340, 408, 480, 510, 544, 680, 816, 1020, 1360, 1632, 2040, 2621, 2720, 4080, 5242, 7863, 8160, 10484, 13105, 15726, 20968, 26210, 31452, 39315, 41936, 44557, 52420, 62904, 78630, 83872, 89114, 104840, 125808, 133671, 157260, 178228, 209680, 222785, 251616, 267342, 314520, 356456, 419360, 445570, 534684, 629040, 668355, 712912, 891140, 1069368, 1258080, 1336710, 1425824, 1782280, 2138736, 2673420, 3564560, 4277472, 5346840, 7129120, 10693680, 21387360]

約数ペア:

[(1, 21387360), (2, 10693680), (3, 7129120), (4, 5346840), (5, 4277472), (6, 3564560), (8, 2673420), (10, 2138736), (12, 1782280), (15, 1425824), (16, 1336710), (17, 1258080), (20, 1069368), (24, 891140), (30, 712912), (32, 668355), (34, 629040), (40, 534684), (48, 445570), (51, 419360), (60, 356456), (68, 314520), (80, 267342), (85, 251616), (96, 222785), (102, 209680), (120, 178228), (136, 157260), (160, 133671), (170, 125808), (204, 104840), (240, 89114), (255, 83872), (272, 78630), (340, 62904), (408, 52420), (480, 44557), (510, 41936), (544, 39315), (680, 31452), (816, 26210), (1020, 20968), (1360, 15726), (1632, 13105), (2040, 10484), (2621, 8160), (2720, 7863), (4080, 5242)]