21255938

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{61}}^1\times {\mathrm{337}}^1$

素因数の和:458

約数の個数: 32

約数和(自身を含む): 36211968

約数和(自身を除く): 14956030

約数列:

[1, 2, 11, 22, 47, 61, 94, 122, 337, 517, 671, 674, 1034, 1342, 2867, 3707, 5734, 7414, 15839, 20557, 31537, 31678, 41114, 63074, 174229, 226127, 348458, 452254, 966179, 1932358, 10627969, 21255938]

約数ペア:

[(1, 21255938), (2, 10627969), (11, 1932358), (22, 966179), (47, 452254), (61, 348458), (94, 226127), (122, 174229), (337, 63074), (517, 41114), (671, 31678), (674, 31537), (1034, 20557), (1342, 15839), (2867, 7414), (3707, 5734)]