20157564253

素因数分解:

${\mathrm{53}}^1\times {\mathrm{61}}^1\times {\mathrm{151}}^1\times {\mathrm{157}}^1\times {\mathrm{263}}^1$

素因数の和:685

約数の個数: 32

約数和(自身を含む): 21227069952

約数和(自身を除く): 1069505699

約数列:

[1, 53, 61, 151, 157, 263, 3233, 8003, 8321, 9211, 9577, 13939, 16043, 23707, 39713, 41291, 488183, 507581, 850279, 1256471, 1446127, 2104789, 2188423, 2422493, 2518751, 6234941, 76644731, 128392129, 133493803, 330451873, 380331401, 20157564253]

約数ペア:

[(1, 20157564253), (53, 380331401), (61, 330451873), (151, 133493803), (157, 128392129), (263, 76644731), (3233, 6234941), (8003, 2518751), (8321, 2422493), (9211, 2188423), (9577, 2104789), (13939, 1446127), (16043, 1256471), (23707, 850279), (39713, 507581), (41291, 488183)]