20161005

素因数分解:

$3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{191}}^1\times {\mathrm{227}}^1$

素因数の和:457

約数の個数: 32

約数和(自身を含む): 33619968

約数和(自身を除く): 13458963

約数列:

[1, 3, 5, 15, 31, 93, 155, 191, 227, 465, 573, 681, 955, 1135, 2865, 3405, 5921, 7037, 17763, 21111, 29605, 35185, 43357, 88815, 105555, 130071, 216785, 650355, 1344067, 4032201, 6720335, 20161005]

約数ペア:

[(1, 20161005), (3, 6720335), (5, 4032201), (15, 1344067), (31, 650355), (93, 216785), (155, 130071), (191, 105555), (227, 88815), (465, 43357), (573, 35185), (681, 29605), (955, 21111), (1135, 17763), (2865, 7037), (3405, 5921)]