20314455

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{79}}^2$

素因数の和:204

約数の個数: 48

約数和(自身を含む): 38836224

約数和(自身を除く): 18521769

約数列:

[1, 3, 5, 7, 15, 21, 31, 35, 79, 93, 105, 155, 217, 237, 395, 465, 553, 651, 1085, 1185, 1659, 2449, 2765, 3255, 6241, 7347, 8295, 12245, 17143, 18723, 31205, 36735, 43687, 51429, 85715, 93615, 131061, 193471, 218435, 257145, 580413, 655305, 967355, 1354297, 2902065, 4062891, 6771485, 20314455]

約数ペア:

[(1, 20314455), (3, 6771485), (5, 4062891), (7, 2902065), (15, 1354297), (21, 967355), (31, 655305), (35, 580413), (79, 257145), (93, 218435), (105, 193471), (155, 131061), (217, 93615), (237, 85715), (395, 51429), (465, 43687), (553, 36735), (651, 31205), (1085, 18723), (1185, 17143), (1659, 12245), (2449, 8295), (2765, 7347), (3255, 6241)]