21790422

素因数分解:

$2^1\times 3^2\times {\mathrm{43}}^1\times {\mathrm{47}}^1\times {\mathrm{599}}^1$

素因数の和:697

約数の個数: 48

約数和(自身を含む): 49420800

約数和(自身を除く): 27630378

約数列:

[1, 2, 3, 6, 9, 18, 43, 47, 86, 94, 129, 141, 258, 282, 387, 423, 599, 774, 846, 1198, 1797, 2021, 3594, 4042, 5391, 6063, 10782, 12126, 18189, 25757, 28153, 36378, 51514, 56306, 77271, 84459, 154542, 168918, 231813, 253377, 463626, 506754, 1210579, 2421158, 3631737, 7263474, 10895211, 21790422]

約数ペア:

[(1, 21790422), (2, 10895211), (3, 7263474), (6, 3631737), (9, 2421158), (18, 1210579), (43, 506754), (47, 463626), (86, 253377), (94, 231813), (129, 168918), (141, 154542), (258, 84459), (282, 77271), (387, 56306), (423, 51514), (599, 36378), (774, 28153), (846, 25757), (1198, 18189), (1797, 12126), (2021, 10782), (3594, 6063), (4042, 5391)]