21000879795

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{53}}^1\times {\mathrm{3773743}}^1$

素因数の和:3773811

約数の個数: 32

約数和(自身を含む): 39126177792

約数和(自身を除く): 18125297997

約数列:

[1, 3, 5, 7, 15, 21, 35, 53, 105, 159, 265, 371, 795, 1113, 1855, 5565, 3773743, 11321229, 18868715, 26416201, 56606145, 79248603, 132081005, 200008379, 396243015, 600025137, 1000041895, 1400058653, 3000125685, 4200175959, 7000293265, 21000879795]

約数ペア:

[(1, 21000879795), (3, 7000293265), (5, 4200175959), (7, 3000125685), (15, 1400058653), (21, 1000041895), (35, 600025137), (53, 396243015), (105, 200008379), (159, 132081005), (265, 79248603), (371, 56606145), (795, 26416201), (1113, 18868715), (1855, 11321229), (5565, 3773743)]