19998664

素因数分解:

$2^3\times 7^2\times {\mathrm{17}}^1\times {\mathrm{3001}}^1$

素因数の和:3038

約数の個数: 48

約数和(自身を含む): 46200780

約数和(自身を除く): 26202116

約数列:

[1, 2, 4, 7, 8, 14, 17, 28, 34, 49, 56, 68, 98, 119, 136, 196, 238, 392, 476, 833, 952, 1666, 3001, 3332, 6002, 6664, 12004, 21007, 24008, 42014, 51017, 84028, 102034, 147049, 168056, 204068, 294098, 357119, 408136, 588196, 714238, 1176392, 1428476, 2499833, 2856952, 4999666, 9999332, 19998664]

約数ペア:

[(1, 19998664), (2, 9999332), (4, 4999666), (7, 2856952), (8, 2499833), (14, 1428476), (17, 1176392), (28, 714238), (34, 588196), (49, 408136), (56, 357119), (68, 294098), (98, 204068), (119, 168056), (136, 147049), (196, 102034), (238, 84028), (392, 51017), (476, 42014), (833, 24008), (952, 21007), (1666, 12004), (3001, 6664), (3332, 6002)]