21662325

素因数分解:

$3^2\times 5^2\times {\mathrm{43}}^1\times {\mathrm{2239}}^1$

素因数の和:2298

約数の個数: 36

約数和(自身を含む): 39719680

約数和(自身を除く): 18057355

約数列:

[1, 3, 5, 9, 15, 25, 43, 45, 75, 129, 215, 225, 387, 645, 1075, 1935, 2239, 3225, 6717, 9675, 11195, 20151, 33585, 55975, 96277, 100755, 167925, 288831, 481385, 503775, 866493, 1444155, 2406925, 4332465, 7220775, 21662325]

約数ペア:

[(1, 21662325), (3, 7220775), (5, 4332465), (9, 2406925), (15, 1444155), (25, 866493), (43, 503775), (45, 481385), (75, 288831), (129, 167925), (215, 100755), (225, 96277), (387, 55975), (645, 33585), (1075, 20151), (1935, 11195), (2239, 9675), (3225, 6717)]