18249420

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{43451}}^1$

素因数の和:43470

約数の個数: 48

約数和(自身を含む): 58399488

約数和(自身を除く): 40150068

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 43451, 86902, 130353, 173804, 217255, 260706, 304157, 434510, 521412, 608314, 651765, 869020, 912471, 1216628, 1303530, 1520785, 1824942, 2607060, 3041570, 3649884, 4562355, 6083140, 9124710, 18249420]

約数ペア:

[(1, 18249420), (2, 9124710), (3, 6083140), (4, 4562355), (5, 3649884), (6, 3041570), (7, 2607060), (10, 1824942), (12, 1520785), (14, 1303530), (15, 1216628), (20, 912471), (21, 869020), (28, 651765), (30, 608314), (35, 521412), (42, 434510), (60, 304157), (70, 260706), (84, 217255), (105, 173804), (140, 130353), (210, 86902), (420, 43451)]