21497886

素因数分解:

$2^1\times 3^4\times {\mathrm{131}}^1\times {\mathrm{1013}}^1$

素因数の和:1158

約数の個数: 40

約数和(自身を含む): 48586824

約数和(自身を除く): 27088938

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 81, 131, 162, 262, 393, 786, 1013, 1179, 2026, 2358, 3039, 3537, 6078, 7074, 9117, 10611, 18234, 21222, 27351, 54702, 82053, 132703, 164106, 265406, 398109, 796218, 1194327, 2388654, 3582981, 7165962, 10748943, 21497886]

約数ペア:

[(1, 21497886), (2, 10748943), (3, 7165962), (6, 3582981), (9, 2388654), (18, 1194327), (27, 796218), (54, 398109), (81, 265406), (131, 164106), (162, 132703), (262, 82053), (393, 54702), (786, 27351), (1013, 21222), (1179, 18234), (2026, 10611), (2358, 9117), (3039, 7074), (3537, 6078)]