21064764

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{4111}}^1$

素因数の和:4186

約数の個数: 48

約数和(自身を含む): 57107456

約数和(自身を除く): 36042692

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 61, 84, 122, 183, 244, 366, 427, 732, 854, 1281, 1708, 2562, 4111, 5124, 8222, 12333, 16444, 24666, 28777, 49332, 57554, 86331, 115108, 172662, 250771, 345324, 501542, 752313, 1003084, 1504626, 1755397, 3009252, 3510794, 5266191, 7021588, 10532382, 21064764]

約数ペア:

[(1, 21064764), (2, 10532382), (3, 7021588), (4, 5266191), (6, 3510794), (7, 3009252), (12, 1755397), (14, 1504626), (21, 1003084), (28, 752313), (42, 501542), (61, 345324), (84, 250771), (122, 172662), (183, 115108), (244, 86331), (366, 57554), (427, 49332), (732, 28777), (854, 24666), (1281, 16444), (1708, 12333), (2562, 8222), (4111, 5124)]