18918704

素因数分解:

$2^4\times 7^2\times {\mathrm{59}}^1\times {\mathrm{409}}^1$

素因数の和:490

約数の個数: 60

約数和(自身を含む): 43468200

約数和(自身を除く): 24549496

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 49, 56, 59, 98, 112, 118, 196, 236, 392, 409, 413, 472, 784, 818, 826, 944, 1636, 1652, 2863, 2891, 3272, 3304, 5726, 5782, 6544, 6608, 11452, 11564, 20041, 22904, 23128, 24131, 40082, 45808, 46256, 48262, 80164, 96524, 160328, 168917, 193048, 320656, 337834, 386096, 675668, 1182419, 1351336, 2364838, 2702672, 4729676, 9459352, 18918704]

約数ペア:

[(1, 18918704), (2, 9459352), (4, 4729676), (7, 2702672), (8, 2364838), (14, 1351336), (16, 1182419), (28, 675668), (49, 386096), (56, 337834), (59, 320656), (98, 193048), (112, 168917), (118, 160328), (196, 96524), (236, 80164), (392, 48262), (409, 46256), (413, 45808), (472, 40082), (784, 24131), (818, 23128), (826, 22904), (944, 20041), (1636, 11564), (1652, 11452), (2863, 6608), (2891, 6544), (3272, 5782), (3304, 5726)]