21149464

素因数分解:

$2^3\times 7^1\times {\mathrm{43}}^1\times {\mathrm{8783}}^1$

素因数の和:8839

約数の個数: 32

約数和(自身を含む): 46379520

約数和(自身を除く): 25230056

約数列:

[1, 2, 4, 7, 8, 14, 28, 43, 56, 86, 172, 301, 344, 602, 1204, 2408, 8783, 17566, 35132, 61481, 70264, 122962, 245924, 377669, 491848, 755338, 1510676, 2643683, 3021352, 5287366, 10574732, 21149464]

約数ペア:

[(1, 21149464), (2, 10574732), (4, 5287366), (7, 3021352), (8, 2643683), (14, 1510676), (28, 755338), (43, 491848), (56, 377669), (86, 245924), (172, 122962), (301, 70264), (344, 61481), (602, 35132), (1204, 17566), (2408, 8783)]