21849420

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{691}}^1$

素因数の和:751

約数の個数: 96

約数和(自身を含む): 66963456

約数和(自身を除く): 45114036

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 17, 20, 30, 31, 34, 51, 60, 62, 68, 85, 93, 102, 124, 155, 170, 186, 204, 255, 310, 340, 372, 465, 510, 527, 620, 691, 930, 1020, 1054, 1382, 1581, 1860, 2073, 2108, 2635, 2764, 3162, 3455, 4146, 5270, 6324, 6910, 7905, 8292, 10365, 10540, 11747, 13820, 15810, 20730, 21421, 23494, 31620, 35241, 41460, 42842, 46988, 58735, 64263, 70482, 85684, 107105, 117470, 128526, 140964, 176205, 214210, 234940, 257052, 321315, 352410, 364157, 428420, 642630, 704820, 728314, 1092471, 1285260, 1456628, 1820785, 2184942, 3641570, 4369884, 5462355, 7283140, 10924710, 21849420]

約数ペア:

[(1, 21849420), (2, 10924710), (3, 7283140), (4, 5462355), (5, 4369884), (6, 3641570), (10, 2184942), (12, 1820785), (15, 1456628), (17, 1285260), (20, 1092471), (30, 728314), (31, 704820), (34, 642630), (51, 428420), (60, 364157), (62, 352410), (68, 321315), (85, 257052), (93, 234940), (102, 214210), (124, 176205), (155, 140964), (170, 128526), (186, 117470), (204, 107105), (255, 85684), (310, 70482), (340, 64263), (372, 58735), (465, 46988), (510, 42842), (527, 41460), (620, 35241), (691, 31620), (930, 23494), (1020, 21421), (1054, 20730), (1382, 15810), (1581, 13820), (1860, 11747), (2073, 10540), (2108, 10365), (2635, 8292), (2764, 7905), (3162, 6910), (3455, 6324), (4146, 5270)]