21613240

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{49121}}^1$

素因数の和:49143

約数の個数: 32

約数和(自身を含む): 53051760

約数和(自身を除く): 31438520

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 49121, 98242, 196484, 245605, 392968, 491210, 540331, 982420, 1080662, 1964840, 2161324, 2701655, 4322648, 5403310, 10806620, 21613240]

約数ペア:

[(1, 21613240), (2, 10806620), (4, 5403310), (5, 4322648), (8, 2701655), (10, 2161324), (11, 1964840), (20, 1080662), (22, 982420), (40, 540331), (44, 491210), (55, 392968), (88, 245605), (110, 196484), (220, 98242), (440, 49121)]