21564450

素因数分解:

$2^1\times 3^2\times 5^2\times {\mathrm{173}}^1\times {\mathrm{277}}^1$

素因数の和:468

約数の個数: 72

約数和(自身を含む): 58481748

約数和(自身を除く): 36917298

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 25, 30, 45, 50, 75, 90, 150, 173, 225, 277, 346, 450, 519, 554, 831, 865, 1038, 1385, 1557, 1662, 1730, 2493, 2595, 2770, 3114, 4155, 4325, 4986, 5190, 6925, 7785, 8310, 8650, 12465, 12975, 13850, 15570, 20775, 24930, 25950, 38925, 41550, 47921, 62325, 77850, 95842, 124650, 143763, 239605, 287526, 431289, 479210, 718815, 862578, 1198025, 1437630, 2156445, 2396050, 3594075, 4312890, 7188150, 10782225, 21564450]

約数ペア:

[(1, 21564450), (2, 10782225), (3, 7188150), (5, 4312890), (6, 3594075), (9, 2396050), (10, 2156445), (15, 1437630), (18, 1198025), (25, 862578), (30, 718815), (45, 479210), (50, 431289), (75, 287526), (90, 239605), (150, 143763), (173, 124650), (225, 95842), (277, 77850), (346, 62325), (450, 47921), (519, 41550), (554, 38925), (831, 25950), (865, 24930), (1038, 20775), (1385, 15570), (1557, 13850), (1662, 12975), (1730, 12465), (2493, 8650), (2595, 8310), (2770, 7785), (3114, 6925), (4155, 5190), (4325, 4986)]