7121445

素因数分解:

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

素因数の和:293

約数の個数: 32

約数和(自身を含む): 11915904

約数和(自身を除く): 4794459

約数列:

[1, 3, 5, 15, 43, 61, 129, 181, 183, 215, 305, 543, 645, 905, 915, 2623, 2715, 7783, 7869, 11041, 13115, 23349, 33123, 38915, 39345, 55205, 116745, 165615, 474763, 1424289, 2373815, 7121445]

約数ペア:

[(1, 7121445), (3, 2373815), (5, 1424289), (15, 474763), (43, 165615), (61, 116745), (129, 55205), (181, 39345), (183, 38915), (215, 33123), (305, 23349), (543, 13115), (645, 11041), (905, 7869), (915, 7783), (2623, 2715)]