21316488

素因数分解:

$2^3\times 3^1\times {\mathrm{163}}^1\times {\mathrm{5449}}^1$

素因数の和:5621

約数の個数: 32

約数和(自身を含む): 53628000

約数和(自身を除く): 32311512

約数列:

[1, 2, 3, 4, 6, 8, 12, 24, 163, 326, 489, 652, 978, 1304, 1956, 3912, 5449, 10898, 16347, 21796, 32694, 43592, 65388, 130776, 888187, 1776374, 2664561, 3552748, 5329122, 7105496, 10658244, 21316488]

約数ペア:

[(1, 21316488), (2, 10658244), (3, 7105496), (4, 5329122), (6, 3552748), (8, 2664561), (12, 1776374), (24, 888187), (163, 130776), (326, 65388), (489, 43592), (652, 32694), (978, 21796), (1304, 16347), (1956, 10898), (3912, 5449)]