19906796

素因数分解:

$2^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{3217}}^1$

素因数の和:3258

約数の個数: 48

約数和(自身を含む): 45412416

約数和(自身を除く): 25505620

約数列:

[1, 2, 4, 7, 13, 14, 17, 26, 28, 34, 52, 68, 91, 119, 182, 221, 238, 364, 442, 476, 884, 1547, 3094, 3217, 6188, 6434, 12868, 22519, 41821, 45038, 54689, 83642, 90076, 109378, 167284, 218756, 292747, 382823, 585494, 710957, 765646, 1170988, 1421914, 1531292, 2843828, 4976699, 9953398, 19906796]

約数ペア:

[(1, 19906796), (2, 9953398), (4, 4976699), (7, 2843828), (13, 1531292), (14, 1421914), (17, 1170988), (26, 765646), (28, 710957), (34, 585494), (52, 382823), (68, 292747), (91, 218756), (119, 167284), (182, 109378), (221, 90076), (238, 83642), (364, 54689), (442, 45038), (476, 41821), (884, 22519), (1547, 12868), (3094, 6434), (3217, 6188)]