20677372

素因数分解:

$2^2\times {\mathrm{17}}^2\times {\mathrm{31}}^1\times {\mathrm{577}}^1$

素因数の和:646

約数の個数: 36

約数和(自身を含む): 39747904

約数和(自身を除く): 19070532

約数列:

[1, 2, 4, 17, 31, 34, 62, 68, 124, 289, 527, 577, 578, 1054, 1154, 1156, 2108, 2308, 8959, 9809, 17887, 17918, 19618, 35774, 35836, 39236, 71548, 166753, 304079, 333506, 608158, 667012, 1216316, 5169343, 10338686, 20677372]

約数ペア:

[(1, 20677372), (2, 10338686), (4, 5169343), (17, 1216316), (31, 667012), (34, 608158), (62, 333506), (68, 304079), (124, 166753), (289, 71548), (527, 39236), (577, 35836), (578, 35774), (1054, 19618), (1154, 17918), (1156, 17887), (2108, 9809), (2308, 8959)]