21356972

素因数分解:

$2^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{2551}}^1$

素因数の和:2598

約数の個数: 48

約数和(自身を含む): 48018432

約数和(自身を除く): 26661460

約数列:

[1, 2, 4, 7, 13, 14, 23, 26, 28, 46, 52, 91, 92, 161, 182, 299, 322, 364, 598, 644, 1196, 2093, 2551, 4186, 5102, 8372, 10204, 17857, 33163, 35714, 58673, 66326, 71428, 117346, 132652, 232141, 234692, 410711, 464282, 762749, 821422, 928564, 1525498, 1642844, 3050996, 5339243, 10678486, 21356972]

約数ペア:

[(1, 21356972), (2, 10678486), (4, 5339243), (7, 3050996), (13, 1642844), (14, 1525498), (23, 928564), (26, 821422), (28, 762749), (46, 464282), (52, 410711), (91, 234692), (92, 232141), (161, 132652), (182, 117346), (299, 71428), (322, 66326), (364, 58673), (598, 35714), (644, 33163), (1196, 17857), (2093, 10204), (2551, 8372), (4186, 5102)]