21727528

素因数分解:

$2^3\times {\mathrm{31}}^1\times {\mathrm{79}}^1\times {\mathrm{1109}}^1$

素因数の和:1225

約数の個数: 32

約数和(自身を含む): 42624000

約数和(自身を除く): 20896472

約数列:

[1, 2, 4, 8, 31, 62, 79, 124, 158, 248, 316, 632, 1109, 2218, 2449, 4436, 4898, 8872, 9796, 19592, 34379, 68758, 87611, 137516, 175222, 275032, 350444, 700888, 2715941, 5431882, 10863764, 21727528]

約数ペア:

[(1, 21727528), (2, 10863764), (4, 5431882), (8, 2715941), (31, 700888), (62, 350444), (79, 275032), (124, 175222), (158, 137516), (248, 87611), (316, 68758), (632, 34379), (1109, 19592), (2218, 9796), (2449, 8872), (4436, 4898)]