20971418

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{103}}^1\times {\mathrm{191}}^1$

素因数の和:350

約数の個数: 32

約数和(自身を含む): 35223552

約数和(自身を除く): 14252134

約数列:

[1, 2, 13, 26, 41, 82, 103, 191, 206, 382, 533, 1066, 1339, 2483, 2678, 4223, 4966, 7831, 8446, 15662, 19673, 39346, 54899, 101803, 109798, 203606, 255749, 511498, 806593, 1613186, 10485709, 20971418]

約数ペア:

[(1, 20971418), (2, 10485709), (13, 1613186), (26, 806593), (41, 511498), (82, 255749), (103, 203606), (191, 109798), (206, 101803), (382, 54899), (533, 39346), (1066, 19673), (1339, 15662), (2483, 8446), (2678, 7831), (4223, 4966)]