18419209490

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{89}}^1\times {\mathrm{1881431}}^1$

素因数の和:1881538

約数の個数: 32

約数和(自身を含む): 36575038080

約数和(自身を除く): 18155828590

約数列:

[1, 2, 5, 10, 11, 22, 55, 89, 110, 178, 445, 890, 979, 1958, 4895, 9790, 1881431, 3762862, 9407155, 18814310, 20695741, 41391482, 103478705, 167447359, 206957410, 334894718, 837236795, 1674473590, 1841920949, 3683841898, 9209604745, 18419209490]

約数ペア:

[(1, 18419209490), (2, 9209604745), (5, 3683841898), (10, 1841920949), (11, 1674473590), (22, 837236795), (55, 334894718), (89, 206957410), (110, 167447359), (178, 103478705), (445, 41391482), (890, 20695741), (979, 18814310), (1958, 9407155), (4895, 3762862), (9790, 1881431)]