21089760

素因数分解:

$2^5\times 3^1\times 5^1\times {\mathrm{53}}^1\times {\mathrm{829}}^1$

素因数の和:900

約数の個数: 96

約数和(自身を含む): 67767840

約数和(自身を除く): 46678080

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 53, 60, 80, 96, 106, 120, 159, 160, 212, 240, 265, 318, 424, 480, 530, 636, 795, 829, 848, 1060, 1272, 1590, 1658, 1696, 2120, 2487, 2544, 3180, 3316, 4145, 4240, 4974, 5088, 6360, 6632, 8290, 8480, 9948, 12435, 12720, 13264, 16580, 19896, 24870, 25440, 26528, 33160, 39792, 43937, 49740, 66320, 79584, 87874, 99480, 131811, 132640, 175748, 198960, 219685, 263622, 351496, 397920, 439370, 527244, 659055, 702992, 878740, 1054488, 1318110, 1405984, 1757480, 2108976, 2636220, 3514960, 4217952, 5272440, 7029920, 10544880, 21089760]

約数ペア:

[(1, 21089760), (2, 10544880), (3, 7029920), (4, 5272440), (5, 4217952), (6, 3514960), (8, 2636220), (10, 2108976), (12, 1757480), (15, 1405984), (16, 1318110), (20, 1054488), (24, 878740), (30, 702992), (32, 659055), (40, 527244), (48, 439370), (53, 397920), (60, 351496), (80, 263622), (96, 219685), (106, 198960), (120, 175748), (159, 132640), (160, 131811), (212, 99480), (240, 87874), (265, 79584), (318, 66320), (424, 49740), (480, 43937), (530, 39792), (636, 33160), (795, 26528), (829, 25440), (848, 24870), (1060, 19896), (1272, 16580), (1590, 13264), (1658, 12720), (1696, 12435), (2120, 9948), (2487, 8480), (2544, 8290), (3180, 6632), (3316, 6360), (4145, 5088), (4240, 4974)]