21344815

素因数分解:

$5^1\times {\mathrm{47}}^1\times {\mathrm{61}}^1\times {\mathrm{1489}}^1$

素因数の和:1602

約数の個数: 16

約数和(自身を含む): 26605440

約数和(自身を除く): 5260625

約数列:

[1, 5, 47, 61, 235, 305, 1489, 2867, 7445, 14335, 69983, 90829, 349915, 454145, 4268963, 21344815]

約数ペア:

[(1, 21344815), (5, 4268963), (47, 454145), (61, 349915), (235, 90829), (305, 69983), (1489, 14335), (2867, 7445)]