642742906

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{1301099}}^1$

素因数の和:1301133

約数の個数: 16

約数和(自身を含む): 1092924000

約数和(自身を除く): 450181094

約数列:

[1, 2, 13, 19, 26, 38, 247, 494, 1301099, 2602198, 16914287, 24720881, 33828574, 49441762, 321371453, 642742906]

約数ペア:

[(1, 642742906), (2, 321371453), (13, 49441762), (19, 33828574), (26, 24720881), (38, 16914287), (247, 2602198), (494, 1301099)]