20690664

素因数分解:

$2^3\times 3^1\times {\mathrm{131}}^1\times {\mathrm{6581}}^1$

素因数の和:6721

約数の個数: 32

約数和(自身を含む): 52129440

約数和(自身を除く): 31438776

約数列:

[1, 2, 3, 4, 6, 8, 12, 24, 131, 262, 393, 524, 786, 1048, 1572, 3144, 6581, 13162, 19743, 26324, 39486, 52648, 78972, 157944, 862111, 1724222, 2586333, 3448444, 5172666, 6896888, 10345332, 20690664]

約数ペア:

[(1, 20690664), (2, 10345332), (3, 6896888), (4, 5172666), (6, 3448444), (8, 2586333), (12, 1724222), (24, 862111), (131, 157944), (262, 78972), (393, 52648), (524, 39486), (786, 26324), (1048, 19743), (1572, 13162), (3144, 6581)]