22121240

素因数分解:

$2^3\times 5^1\times {\mathrm{211}}^1\times {\mathrm{2621}}^1$

素因数の和:2843

約数の個数: 32

約数和(自身を含む): 50027760

約数和(自身を除く): 27906520

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 211, 422, 844, 1055, 1688, 2110, 2621, 4220, 5242, 8440, 10484, 13105, 20968, 26210, 52420, 104840, 553031, 1106062, 2212124, 2765155, 4424248, 5530310, 11060620, 22121240]

約数ペア:

[(1, 22121240), (2, 11060620), (4, 5530310), (5, 4424248), (8, 2765155), (10, 2212124), (20, 1106062), (40, 553031), (211, 104840), (422, 52420), (844, 26210), (1055, 20968), (1688, 13105), (2110, 10484), (2621, 8440), (4220, 5242)]