18785816

素因数分解:

$2^3\times 7^2\times {\mathrm{17}}^1\times {\mathrm{2819}}^1$

素因数の和:2856

約数の個数: 48

約数和(自身を含む): 43399800

約数和(自身を除く): 24613984

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, 2819, 3332, 5638, 6664, 11276, 19733, 22552, 39466, 47923, 78932, 95846, 138131, 157864, 191692, 276262, 335461, 383384, 552524, 670922, 1105048, 1341844, 2348227, 2683688, 4696454, 9392908, 18785816]

約数ペア:

[(1, 18785816), (2, 9392908), (4, 4696454), (7, 2683688), (8, 2348227), (14, 1341844), (17, 1105048), (28, 670922), (34, 552524), (49, 383384), (56, 335461), (68, 276262), (98, 191692), (119, 157864), (136, 138131), (196, 95846), (238, 78932), (392, 47923), (476, 39466), (833, 22552), (952, 19733), (1666, 11276), (2819, 6664), (3332, 5638)]