16031421

素因数分解:

$3^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{59}}^1\times {\mathrm{227}}^1$

素因数の和:318

約数の個数: 48

約数和(自身を含む): 28454400

約数和(自身を除く): 12422979

約数列:

[1, 3, 7, 9, 19, 21, 57, 59, 63, 133, 171, 177, 227, 399, 413, 531, 681, 1121, 1197, 1239, 1589, 2043, 3363, 3717, 4313, 4767, 7847, 10089, 12939, 13393, 14301, 23541, 30191, 38817, 40179, 70623, 90573, 93751, 120537, 254467, 271719, 281253, 763401, 843759, 1781269, 2290203, 5343807, 16031421]

約数ペア:

[(1, 16031421), (3, 5343807), (7, 2290203), (9, 1781269), (19, 843759), (21, 763401), (57, 281253), (59, 271719), (63, 254467), (133, 120537), (171, 93751), (177, 90573), (227, 70623), (399, 40179), (413, 38817), (531, 30191), (681, 23541), (1121, 14301), (1197, 13393), (1239, 12939), (1589, 10089), (2043, 7847), (3363, 4767), (3717, 4313)]