21423015

素因数分解:

$3^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{5119}}^1$

素因数の和:5164

約数の個数: 32

約数和(自身を含む): 39321600

約数和(自身を除く): 17898585

約数列:

[1, 3, 5, 9, 15, 27, 31, 45, 93, 135, 155, 279, 465, 837, 1395, 4185, 5119, 15357, 25595, 46071, 76785, 138213, 158689, 230355, 476067, 691065, 793445, 1428201, 2380335, 4284603, 7141005, 21423015]

約数ペア:

[(1, 21423015), (3, 7141005), (5, 4284603), (9, 2380335), (15, 1428201), (27, 793445), (31, 691065), (45, 476067), (93, 230355), (135, 158689), (155, 138213), (279, 76785), (465, 46071), (837, 25595), (1395, 15357), (4185, 5119)]