20938806

素因数分解:

$2^1\times 3^2\times 7^1\times {\mathrm{137}}^1\times {\mathrm{1213}}^1$

素因数の和:1365

約数の個数: 48

約数和(自身を含む): 52269984

約数和(自身を除く): 31331178

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 42, 63, 126, 137, 274, 411, 822, 959, 1213, 1233, 1918, 2426, 2466, 2877, 3639, 5754, 7278, 8491, 8631, 10917, 16982, 17262, 21834, 25473, 50946, 76419, 152838, 166181, 332362, 498543, 997086, 1163267, 1495629, 2326534, 2991258, 3489801, 6979602, 10469403, 20938806]

約数ペア:

[(1, 20938806), (2, 10469403), (3, 6979602), (6, 3489801), (7, 2991258), (9, 2326534), (14, 1495629), (18, 1163267), (21, 997086), (42, 498543), (63, 332362), (126, 166181), (137, 152838), (274, 76419), (411, 50946), (822, 25473), (959, 21834), (1213, 17262), (1233, 16982), (1918, 10917), (2426, 8631), (2466, 8491), (2877, 7278), (3639, 5754)]