28018977

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{70223}}^1$

素因数の和:70252

約数の個数: 16

約数和(自身を含む): 44943360

約数和(自身を除く): 16924383

約数列:

[1, 3, 7, 19, 21, 57, 133, 399, 70223, 210669, 491561, 1334237, 1474683, 4002711, 9339659, 28018977]

約数ペア:

[(1, 28018977), (3, 9339659), (7, 4002711), (19, 1474683), (21, 1334237), (57, 491561), (133, 210669), (399, 70223)]