20767578

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{181}}^1\times {\mathrm{1471}}^1$

素因数の和:1670

約数の個数: 32

約数和(自身を含む): 45007872

約数和(自身を除く): 24240294

約数列:

[1, 2, 3, 6, 13, 26, 39, 78, 181, 362, 543, 1086, 1471, 2353, 2942, 4413, 4706, 7059, 8826, 14118, 19123, 38246, 57369, 114738, 266251, 532502, 798753, 1597506, 3461263, 6922526, 10383789, 20767578]

約数ペア:

[(1, 20767578), (2, 10383789), (3, 6922526), (6, 3461263), (13, 1597506), (26, 798753), (39, 532502), (78, 266251), (181, 114738), (362, 57369), (543, 38246), (1086, 19123), (1471, 14118), (2353, 8826), (2942, 7059), (4413, 4706)]