21526430

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^2\times {\mathrm{67}}^1\times {\mathrm{89}}^1$

素因数の和:201

約数の個数: 48

約数和(自身を含む): 41970960

約数和(自身を除く): 20444530

約数列:

[1, 2, 5, 10, 19, 38, 67, 89, 95, 134, 178, 190, 335, 361, 445, 670, 722, 890, 1273, 1691, 1805, 2546, 3382, 3610, 5963, 6365, 8455, 11926, 12730, 16910, 24187, 29815, 32129, 48374, 59630, 64258, 113297, 120935, 160645, 226594, 241870, 321290, 566485, 1132970, 2152643, 4305286, 10763215, 21526430]

約数ペア:

[(1, 21526430), (2, 10763215), (5, 4305286), (10, 2152643), (19, 1132970), (38, 566485), (67, 321290), (89, 241870), (95, 226594), (134, 160645), (178, 120935), (190, 113297), (335, 64258), (361, 59630), (445, 48374), (670, 32129), (722, 29815), (890, 24187), (1273, 16910), (1691, 12730), (1805, 11926), (2546, 8455), (3382, 6365), (3610, 5963)]