21102508

素因数分解:

$2^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{1031}}^1$

素因数の和:1102

約数の個数: 48

約数和(自身を含む): 45771264

約数和(自身を除く): 24668756

約数列:

[1, 2, 4, 7, 14, 17, 28, 34, 43, 68, 86, 119, 172, 238, 301, 476, 602, 731, 1031, 1204, 1462, 2062, 2924, 4124, 5117, 7217, 10234, 14434, 17527, 20468, 28868, 35054, 44333, 70108, 88666, 122689, 177332, 245378, 310331, 490756, 620662, 753661, 1241324, 1507322, 3014644, 5275627, 10551254, 21102508]

約数ペア:

[(1, 21102508), (2, 10551254), (4, 5275627), (7, 3014644), (14, 1507322), (17, 1241324), (28, 753661), (34, 620662), (43, 490756), (68, 310331), (86, 245378), (119, 177332), (172, 122689), (238, 88666), (301, 70108), (476, 44333), (602, 35054), (731, 28868), (1031, 20468), (1204, 17527), (1462, 14434), (2062, 10234), (2924, 7217), (4124, 5117)]