21510404

素因数分解:

$2^2\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{4231}}^1$

素因数の和:4307

約数の個数: 24

約数和(自身を含む): 39814656

約数和(自身を除く): 18304252

約数列:

[1, 2, 4, 31, 41, 62, 82, 124, 164, 1271, 2542, 4231, 5084, 8462, 16924, 131161, 173471, 262322, 346942, 524644, 693884, 5377601, 10755202, 21510404]

約数ペア:

[(1, 21510404), (2, 10755202), (4, 5377601), (31, 693884), (41, 524644), (62, 346942), (82, 262322), (124, 173471), (164, 131161), (1271, 16924), (2542, 8462), (4231, 5084)]