21999112

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{144731}}^1$

素因数の和:144756

約数の個数: 16

約数和(自身を含む): 43419600

約数和(自身を除く): 21420488

約数列:

[1, 2, 4, 8, 19, 38, 76, 152, 144731, 289462, 578924, 1157848, 2749889, 5499778, 10999556, 21999112]

約数ペア:

[(1, 21999112), (2, 10999556), (4, 5499778), (8, 2749889), (19, 1157848), (38, 578924), (76, 289462), (152, 144731)]