21314940

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{20897}}^1$

素因数の和:20926

約数の個数: 48

約数和(自身を含む): 63195552

約数和(自身を除く): 41880612

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 17, 20, 30, 34, 51, 60, 68, 85, 102, 170, 204, 255, 340, 510, 1020, 20897, 41794, 62691, 83588, 104485, 125382, 208970, 250764, 313455, 355249, 417940, 626910, 710498, 1065747, 1253820, 1420996, 1776245, 2131494, 3552490, 4262988, 5328735, 7104980, 10657470, 21314940]

約数ペア:

[(1, 21314940), (2, 10657470), (3, 7104980), (4, 5328735), (5, 4262988), (6, 3552490), (10, 2131494), (12, 1776245), (15, 1420996), (17, 1253820), (20, 1065747), (30, 710498), (34, 626910), (51, 417940), (60, 355249), (68, 313455), (85, 250764), (102, 208970), (170, 125382), (204, 104485), (255, 83588), (340, 62691), (510, 41794), (1020, 20897)]