21031140

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{59}}^1\times {\mathrm{457}}^1$

素因数の和:541

約数の個数: 96

約数和(自身を含む): 64632960

約数和(自身を除く): 43601820

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 39, 52, 59, 60, 65, 78, 118, 130, 156, 177, 195, 236, 260, 295, 354, 390, 457, 590, 708, 767, 780, 885, 914, 1180, 1371, 1534, 1770, 1828, 2285, 2301, 2742, 3068, 3540, 3835, 4570, 4602, 5484, 5941, 6855, 7670, 9140, 9204, 11505, 11882, 13710, 15340, 17823, 23010, 23764, 26963, 27420, 29705, 35646, 46020, 53926, 59410, 71292, 80889, 89115, 107852, 118820, 134815, 161778, 178230, 269630, 323556, 350519, 356460, 404445, 539260, 701038, 808890, 1051557, 1402076, 1617780, 1752595, 2103114, 3505190, 4206228, 5257785, 7010380, 10515570, 21031140]

約数ペア:

[(1, 21031140), (2, 10515570), (3, 7010380), (4, 5257785), (5, 4206228), (6, 3505190), (10, 2103114), (12, 1752595), (13, 1617780), (15, 1402076), (20, 1051557), (26, 808890), (30, 701038), (39, 539260), (52, 404445), (59, 356460), (60, 350519), (65, 323556), (78, 269630), (118, 178230), (130, 161778), (156, 134815), (177, 118820), (195, 107852), (236, 89115), (260, 80889), (295, 71292), (354, 59410), (390, 53926), (457, 46020), (590, 35646), (708, 29705), (767, 27420), (780, 26963), (885, 23764), (914, 23010), (1180, 17823), (1371, 15340), (1534, 13710), (1770, 11882), (1828, 11505), (2285, 9204), (2301, 9140), (2742, 7670), (3068, 6855), (3540, 5941), (3835, 5484), (4570, 4602)]