19878604

素因数分解:

$2^2\times {\mathrm{41}}^1\times {\mathrm{53}}^1\times {\mathrm{2287}}^1$

素因数の和:2385

約数の個数: 24

約数和(自身を含む): 36324288

約数和(自身を除く): 16445684

約数列:

[1, 2, 4, 41, 53, 82, 106, 164, 212, 2173, 2287, 4346, 4574, 8692, 9148, 93767, 121211, 187534, 242422, 375068, 484844, 4969651, 9939302, 19878604]

約数ペア:

[(1, 19878604), (2, 9939302), (4, 4969651), (41, 484844), (53, 375068), (82, 242422), (106, 187534), (164, 121211), (212, 93767), (2173, 9148), (2287, 8692), (4346, 4574)]