20679015

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{6353}}^1$

素因数の和:6399

約数の個数: 32

約数和(自身を含む): 39038976

約数和(自身を除く): 18359961

約数列:

[1, 3, 5, 7, 15, 21, 31, 35, 93, 105, 155, 217, 465, 651, 1085, 3255, 6353, 19059, 31765, 44471, 95295, 133413, 196943, 222355, 590829, 667065, 984715, 1378601, 2954145, 4135803, 6893005, 20679015]

約数ペア:

[(1, 20679015), (3, 6893005), (5, 4135803), (7, 2954145), (15, 1378601), (21, 984715), (31, 667065), (35, 590829), (93, 222355), (105, 196943), (155, 133413), (217, 95295), (465, 44471), (651, 31765), (1085, 19059), (3255, 6353)]