21918736

素因数分解:

$2^4\times 7^1\times {\mathrm{31}}^1\times {\mathrm{59}}^1\times {\mathrm{107}}^1$

素因数の和:212

約数の個数: 80

約数和(自身を含む): 51425280

約数和(自身を除く): 29506544

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 31, 56, 59, 62, 107, 112, 118, 124, 214, 217, 236, 248, 413, 428, 434, 472, 496, 749, 826, 856, 868, 944, 1498, 1652, 1712, 1736, 1829, 2996, 3304, 3317, 3472, 3658, 5992, 6313, 6608, 6634, 7316, 11984, 12626, 12803, 13268, 14632, 23219, 25252, 25606, 26536, 29264, 44191, 46438, 50504, 51212, 53072, 88382, 92876, 101008, 102424, 176764, 185752, 195703, 204848, 353528, 371504, 391406, 707056, 782812, 1369921, 1565624, 2739842, 3131248, 5479684, 10959368, 21918736]

約数ペア:

[(1, 21918736), (2, 10959368), (4, 5479684), (7, 3131248), (8, 2739842), (14, 1565624), (16, 1369921), (28, 782812), (31, 707056), (56, 391406), (59, 371504), (62, 353528), (107, 204848), (112, 195703), (118, 185752), (124, 176764), (214, 102424), (217, 101008), (236, 92876), (248, 88382), (413, 53072), (428, 51212), (434, 50504), (472, 46438), (496, 44191), (749, 29264), (826, 26536), (856, 25606), (868, 25252), (944, 23219), (1498, 14632), (1652, 13268), (1712, 12803), (1736, 12626), (1829, 11984), (2996, 7316), (3304, 6634), (3317, 6608), (3472, 6313), (3658, 5992)]