21052906

素因数分解:

$2^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{179}}^1\times {\mathrm{271}}^1$

素因数の和:490

約数の個数: 32

約数和(自身を含む): 37601280

約数和(自身を除く): 16548374

約数列:

[1, 2, 7, 14, 31, 62, 179, 217, 271, 358, 434, 542, 1253, 1897, 2506, 3794, 5549, 8401, 11098, 16802, 38843, 48509, 58807, 77686, 97018, 117614, 339563, 679126, 1503779, 3007558, 10526453, 21052906]

約数ペア:

[(1, 21052906), (2, 10526453), (7, 3007558), (14, 1503779), (31, 679126), (62, 339563), (179, 117614), (217, 97018), (271, 77686), (358, 58807), (434, 48509), (542, 38843), (1253, 16802), (1897, 11098), (2506, 8401), (3794, 5549)]