21358386

素因数分解:

$2^1\times 3^2\times 7^1\times {\mathrm{337}}^1\times {\mathrm{503}}^1$

素因数の和:855

約数の個数: 48

約数和(自身を含む): 53149824

約数和(自身を除く): 31791438

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 42, 63, 126, 337, 503, 674, 1006, 1011, 1509, 2022, 2359, 3018, 3033, 3521, 4527, 4718, 6066, 7042, 7077, 9054, 10563, 14154, 21126, 21231, 31689, 42462, 63378, 169511, 339022, 508533, 1017066, 1186577, 1525599, 2373154, 3051198, 3559731, 7119462, 10679193, 21358386]

約数ペア:

[(1, 21358386), (2, 10679193), (3, 7119462), (6, 3559731), (7, 3051198), (9, 2373154), (14, 1525599), (18, 1186577), (21, 1017066), (42, 508533), (63, 339022), (126, 169511), (337, 63378), (503, 42462), (674, 31689), (1006, 21231), (1011, 21126), (1509, 14154), (2022, 10563), (2359, 9054), (3018, 7077), (3033, 7042), (3521, 6066), (4527, 4718)]