21798678795

素因数分解:

$3^1\times 5^1\times {\mathrm{71}}^1\times {\mathrm{401}}^1\times {\mathrm{51043}}^1$

素因数の和:51523

約数の個数: 32

約数和(自身を含む): 35458020864

約数和(自身を除く): 13659342069

約数列:

[1, 3, 5, 15, 71, 213, 355, 401, 1065, 1203, 2005, 6015, 28471, 51043, 85413, 142355, 153129, 255215, 427065, 765645, 3624053, 10872159, 18120265, 20468243, 54360795, 61404729, 102341215, 307023645, 1453245253, 4359735759, 7266226265, 21798678795]

約数ペア:

[(1, 21798678795), (3, 7266226265), (5, 4359735759), (15, 1453245253), (71, 307023645), (213, 102341215), (355, 61404729), (401, 54360795), (1065, 20468243), (1203, 18120265), (2005, 10872159), (6015, 3624053), (28471, 765645), (51043, 427065), (85413, 255215), (142355, 153129)]