21070545

素因数分解:

$3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{113}}^1\times {\mathrm{401}}^1$

素因数の和:553

約数の個数: 32

約数和(自身を含む): 35195904

約数和(自身を除く): 14125359

約数列:

[1, 3, 5, 15, 31, 93, 113, 155, 339, 401, 465, 565, 1203, 1695, 2005, 3503, 6015, 10509, 12431, 17515, 37293, 45313, 52545, 62155, 135939, 186465, 226565, 679695, 1404703, 4214109, 7023515, 21070545]

約数ペア:

[(1, 21070545), (3, 7023515), (5, 4214109), (15, 1404703), (31, 679695), (93, 226565), (113, 186465), (155, 135939), (339, 62155), (401, 52545), (465, 45313), (565, 37293), (1203, 17515), (1695, 12431), (2005, 10509), (3503, 6015)]