647528637

素因数分解:

$3^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{1340639}}^1$

素因数の和:1340672

約数の個数: 16

約数和(自身を含む): 1029611520

約数和(自身を除く): 382082883

約数列:

[1, 3, 7, 21, 23, 69, 161, 483, 1340639, 4021917, 9384473, 28153419, 30834697, 92504091, 215842879, 647528637]

約数ペア:

[(1, 647528637), (3, 215842879), (7, 92504091), (21, 30834697), (23, 28153419), (69, 9384473), (161, 4021917), (483, 1340639)]