18864244

素因数分解:

$2^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{103}}^1\times {\mathrm{211}}^1$

素因数の和:356

約数の個数: 48

約数和(自身を含む): 39510016

約数和(自身を除く): 20645772

約数列:

[1, 2, 4, 7, 14, 28, 31, 62, 103, 124, 206, 211, 217, 412, 422, 434, 721, 844, 868, 1442, 1477, 2884, 2954, 3193, 5908, 6386, 6541, 12772, 13082, 21733, 22351, 26164, 43466, 44702, 45787, 86932, 89404, 91574, 152131, 183148, 304262, 608524, 673723, 1347446, 2694892, 4716061, 9432122, 18864244]

約数ペア:

[(1, 18864244), (2, 9432122), (4, 4716061), (7, 2694892), (14, 1347446), (28, 673723), (31, 608524), (62, 304262), (103, 183148), (124, 152131), (206, 91574), (211, 89404), (217, 86932), (412, 45787), (422, 44702), (434, 43466), (721, 26164), (844, 22351), (868, 21733), (1442, 13082), (1477, 12772), (2884, 6541), (2954, 6386), (3193, 5908)]