19965718

素因数分解:

$2^1\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{59}}^1\times {\mathrm{269}}^1$

素因数の和:384

約数の個数: 32

約数和(自身を含む): 33242400

約数和(自身を除く): 13276682

約数列:

[1, 2, 17, 34, 37, 59, 74, 118, 269, 538, 629, 1003, 1258, 2006, 2183, 4366, 4573, 9146, 9953, 15871, 19906, 31742, 37111, 74222, 169201, 269807, 338402, 539614, 587227, 1174454, 9982859, 19965718]

約数ペア:

[(1, 19965718), (2, 9982859), (17, 1174454), (34, 587227), (37, 539614), (59, 338402), (74, 269807), (118, 169201), (269, 74222), (538, 37111), (629, 31742), (1003, 19906), (1258, 15871), (2006, 9953), (2183, 9146), (4366, 4573)]