20870595

素因数分解:

$3^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{4987}}^1$

素因数の和:5032

約数の個数: 32

約数和(自身を含む): 38307840

約数和(自身を除く): 17437245

約数列:

[1, 3, 5, 9, 15, 27, 31, 45, 93, 135, 155, 279, 465, 837, 1395, 4185, 4987, 14961, 24935, 44883, 74805, 134649, 154597, 224415, 463791, 673245, 772985, 1391373, 2318955, 4174119, 6956865, 20870595]

約数ペア:

[(1, 20870595), (3, 6956865), (5, 4174119), (9, 2318955), (15, 1391373), (27, 772985), (31, 673245), (45, 463791), (93, 224415), (135, 154597), (155, 134649), (279, 74805), (465, 44883), (837, 24935), (1395, 14961), (4185, 4987)]