21798805

素因数分解:

$5^1\times 7^1\times {\mathrm{163}}^1\times {\mathrm{3821}}^1$

素因数の和:3996

約数の個数: 16

約数和(自身を含む): 30086784

約数和(自身を除く): 8287979

約数列:

[1, 5, 7, 35, 163, 815, 1141, 3821, 5705, 19105, 26747, 133735, 622823, 3114115, 4359761, 21798805]

約数ペア:

[(1, 21798805), (5, 4359761), (7, 3114115), (35, 622823), (163, 133735), (815, 26747), (1141, 19105), (3821, 5705)]