210959679

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{271}}^1\times {\mathrm{1951}}^1$

素因数の和:2251

約数の個数: 32

約数和(自身を含む): 339804160

約数和(自身を除く): 128844481

約数列:

[1, 3, 7, 19, 21, 57, 133, 271, 399, 813, 1897, 1951, 5149, 5691, 5853, 13657, 15447, 36043, 37069, 40971, 108129, 111207, 259483, 528721, 778449, 1586163, 3701047, 10045699, 11103141, 30137097, 70319893, 210959679]

約数ペア:

[(1, 210959679), (3, 70319893), (7, 30137097), (19, 11103141), (21, 10045699), (57, 3701047), (133, 1586163), (271, 778449), (399, 528721), (813, 259483), (1897, 111207), (1951, 108129), (5149, 40971), (5691, 37069), (5853, 36043), (13657, 15447)]