19904666

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{277}}^1$

素因数の和:390

約数の個数: 32

約数和(自身を含む): 33093120

約数和(自身を除く): 13188454

約数列:

[1, 2, 19, 31, 38, 61, 62, 122, 277, 554, 589, 1159, 1178, 1891, 2318, 3782, 5263, 8587, 10526, 16897, 17174, 33794, 35929, 71858, 163153, 321043, 326306, 523807, 642086, 1047614, 9952333, 19904666]

約数ペア:

[(1, 19904666), (2, 9952333), (19, 1047614), (31, 642086), (38, 523807), (61, 326306), (62, 321043), (122, 163153), (277, 71858), (554, 35929), (589, 33794), (1159, 17174), (1178, 16897), (1891, 10526), (2318, 8587), (3782, 5263)]