21747834

素因数分解:

$2^1\times 3^2\times {\mathrm{23}}^1\times {\mathrm{131}}^1\times {\mathrm{401}}^1$

素因数の和:563

約数の個数: 48

約数和(自身を含む): 49667904

約数和(自身を除く): 27920070

約数列:

[1, 2, 3, 6, 9, 18, 23, 46, 69, 131, 138, 207, 262, 393, 401, 414, 786, 802, 1179, 1203, 2358, 2406, 3013, 3609, 6026, 7218, 9039, 9223, 18078, 18446, 27117, 27669, 52531, 54234, 55338, 83007, 105062, 157593, 166014, 315186, 472779, 945558, 1208213, 2416426, 3624639, 7249278, 10873917, 21747834]

約数ペア:

[(1, 21747834), (2, 10873917), (3, 7249278), (6, 3624639), (9, 2416426), (18, 1208213), (23, 945558), (46, 472779), (69, 315186), (131, 166014), (138, 157593), (207, 105062), (262, 83007), (393, 55338), (401, 54234), (414, 52531), (786, 27669), (802, 27117), (1179, 18446), (1203, 18078), (2358, 9223), (2406, 9039), (3013, 7218), (3609, 6026)]