21364335

素因数分解:

$3^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{61}}^1\times {\mathrm{181}}^1$

素因数の和:296

約数の個数: 48

約数和(自身を含む): 38726688

約数和(自身を除く): 17362353

約数列:

[1, 3, 5, 9, 15, 43, 45, 61, 129, 181, 183, 215, 305, 387, 543, 549, 645, 905, 915, 1629, 1935, 2623, 2715, 2745, 7783, 7869, 8145, 11041, 13115, 23349, 23607, 33123, 38915, 39345, 55205, 70047, 99369, 116745, 118035, 165615, 350235, 474763, 496845, 1424289, 2373815, 4272867, 7121445, 21364335]

約数ペア:

[(1, 21364335), (3, 7121445), (5, 4272867), (9, 2373815), (15, 1424289), (43, 496845), (45, 474763), (61, 350235), (129, 165615), (181, 118035), (183, 116745), (215, 99369), (305, 70047), (387, 55205), (543, 39345), (549, 38915), (645, 33123), (905, 23607), (915, 23349), (1629, 13115), (1935, 11041), (2623, 8145), (2715, 7869), (2745, 7783)]