20643534

素因数分解:

$2^1\times 3^2\times {\mathrm{29}}^1\times {\mathrm{71}}^1\times {\mathrm{557}}^1$

素因数の和:665

約数の個数: 48

約数和(自身を含む): 47005920

約数和(自身を除く): 26362386

約数列:

[1, 2, 3, 6, 9, 18, 29, 58, 71, 87, 142, 174, 213, 261, 426, 522, 557, 639, 1114, 1278, 1671, 2059, 3342, 4118, 5013, 6177, 10026, 12354, 16153, 18531, 32306, 37062, 39547, 48459, 79094, 96918, 118641, 145377, 237282, 290754, 355923, 711846, 1146863, 2293726, 3440589, 6881178, 10321767, 20643534]

約数ペア:

[(1, 20643534), (2, 10321767), (3, 6881178), (6, 3440589), (9, 2293726), (18, 1146863), (29, 711846), (58, 355923), (71, 290754), (87, 237282), (142, 145377), (174, 118641), (213, 96918), (261, 79094), (426, 48459), (522, 39547), (557, 37062), (639, 32306), (1114, 18531), (1278, 16153), (1671, 12354), (2059, 10026), (3342, 6177), (4118, 5013)]