21639080

素因数分解:

$2^3\times 5^1\times {\mathrm{37}}^1\times {\mathrm{14621}}^1$

素因数の和:14669

約数の個数: 32

約数和(自身を含む): 50007240

約数和(自身を除く): 28368160

約数列:

[1, 2, 4, 5, 8, 10, 20, 37, 40, 74, 148, 185, 296, 370, 740, 1480, 14621, 29242, 58484, 73105, 116968, 146210, 292420, 540977, 584840, 1081954, 2163908, 2704885, 4327816, 5409770, 10819540, 21639080]

約数ペア:

[(1, 21639080), (2, 10819540), (4, 5409770), (5, 4327816), (8, 2704885), (10, 2163908), (20, 1081954), (37, 584840), (40, 540977), (74, 292420), (148, 146210), (185, 116968), (296, 73105), (370, 58484), (740, 29242), (1480, 14621)]