21228680

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{48247}}^1$

素因数の和:48269

約数の個数: 32

約数和(自身を含む): 52107840

約数和(自身を除く): 30879160

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 48247, 96494, 192988, 241235, 385976, 482470, 530717, 964940, 1061434, 1929880, 2122868, 2653585, 4245736, 5307170, 10614340, 21228680]

約数ペア:

[(1, 21228680), (2, 10614340), (4, 5307170), (5, 4245736), (8, 2653585), (10, 2122868), (11, 1929880), (20, 1061434), (22, 964940), (40, 530717), (44, 482470), (55, 385976), (88, 241235), (110, 192988), (220, 96494), (440, 48247)]