20419722

素因数分解:

$2^1\times 3^3\times {\mathrm{23}}^1\times {\mathrm{41}}^1\times {\mathrm{401}}^1$

素因数の和:476

約数の個数: 64

約数和(自身を含む): 48625920

約数和(自身を除く): 28206198

約数列:

[1, 2, 3, 6, 9, 18, 23, 27, 41, 46, 54, 69, 82, 123, 138, 207, 246, 369, 401, 414, 621, 738, 802, 943, 1107, 1203, 1242, 1886, 2214, 2406, 2829, 3609, 5658, 7218, 8487, 9223, 10827, 16441, 16974, 18446, 21654, 25461, 27669, 32882, 49323, 50922, 55338, 83007, 98646, 147969, 166014, 249021, 295938, 378143, 443907, 498042, 756286, 887814, 1134429, 2268858, 3403287, 6806574, 10209861, 20419722]

約数ペア:

[(1, 20419722), (2, 10209861), (3, 6806574), (6, 3403287), (9, 2268858), (18, 1134429), (23, 887814), (27, 756286), (41, 498042), (46, 443907), (54, 378143), (69, 295938), (82, 249021), (123, 166014), (138, 147969), (207, 98646), (246, 83007), (369, 55338), (401, 50922), (414, 49323), (621, 32882), (738, 27669), (802, 25461), (943, 21654), (1107, 18446), (1203, 16974), (1242, 16441), (1886, 10827), (2214, 9223), (2406, 8487), (2829, 7218), (3609, 5658)]