408040821

素因数分解:

$3^4\times {\mathrm{149}}^1\times {\mathrm{33809}}^1$

素因数の和:33970

約数の個数: 20

約数和(自身を含む): 613651500

約数和(自身を除く): 205610679

約数列:

[1, 3, 9, 27, 81, 149, 447, 1341, 4023, 12069, 33809, 101427, 304281, 912843, 2738529, 5037541, 15112623, 45337869, 136013607, 408040821]

約数ペア:

[(1, 408040821), (3, 136013607), (9, 45337869), (27, 15112623), (81, 5037541), (149, 2738529), (447, 912843), (1341, 304281), (4023, 101427), (12069, 33809)]