81960579

素因数分解:

$3^4\times {\mathrm{149}}^1\times {\mathrm{6791}}^1$

素因数の和:6952

約数の個数: 20

約数和(自身を含む): 123274800

約数和(自身を除く): 41314221

約数列:

[1, 3, 9, 27, 81, 149, 447, 1341, 4023, 6791, 12069, 20373, 61119, 183357, 550071, 1011859, 3035577, 9106731, 27320193, 81960579]

約数ペア:

[(1, 81960579), (3, 27320193), (9, 9106731), (27, 3035577), (81, 1011859), (149, 550071), (447, 183357), (1341, 61119), (4023, 20373), (6791, 12069)]