21226480

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{24121}}^1$

素因数の和:24145

約数の個数: 40

約数和(自身を含む): 53840304

約数和(自身を除く): 32613824

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 176, 220, 440, 880, 24121, 48242, 96484, 120605, 192968, 241210, 265331, 385936, 482420, 530662, 964840, 1061324, 1326655, 1929680, 2122648, 2653310, 4245296, 5306620, 10613240, 21226480]

約数ペア:

[(1, 21226480), (2, 10613240), (4, 5306620), (5, 4245296), (8, 2653310), (10, 2122648), (11, 1929680), (16, 1326655), (20, 1061324), (22, 964840), (40, 530662), (44, 482420), (55, 385936), (80, 265331), (88, 241210), (110, 192968), (176, 120605), (220, 96484), (440, 48242), (880, 24121)]