20311278

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{109}}^1\times {\mathrm{2389}}^1$

素因数の和:2516

約数の個数: 32

約数和(自身を含む): 44167200

約数和(自身を除く): 23855922

約数列:

[1, 2, 3, 6, 13, 26, 39, 78, 109, 218, 327, 654, 1417, 2389, 2834, 4251, 4778, 7167, 8502, 14334, 31057, 62114, 93171, 186342, 260401, 520802, 781203, 1562406, 3385213, 6770426, 10155639, 20311278]

約数ペア:

[(1, 20311278), (2, 10155639), (3, 6770426), (6, 3385213), (13, 1562406), (26, 781203), (39, 520802), (78, 260401), (109, 186342), (218, 93171), (327, 62114), (654, 31057), (1417, 14334), (2389, 8502), (2834, 7167), (4251, 4778)]