18776235

素因数分解:

$3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{149}}^1\times {\mathrm{271}}^1$

素因数の和:459

約数の個数: 32

約数和(自身を含む): 31334400

約数和(自身を除く): 12558165

約数列:

[1, 3, 5, 15, 31, 93, 149, 155, 271, 447, 465, 745, 813, 1355, 2235, 4065, 4619, 8401, 13857, 23095, 25203, 40379, 42005, 69285, 121137, 126015, 201895, 605685, 1251749, 3755247, 6258745, 18776235]

約数ペア:

[(1, 18776235), (3, 6258745), (5, 3755247), (15, 1251749), (31, 605685), (93, 201895), (149, 126015), (155, 121137), (271, 69285), (447, 42005), (465, 40379), (745, 25203), (813, 23095), (1355, 13857), (2235, 8401), (4065, 4619)]