19803368

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{487}}^1$

素因数の和:546

約数の個数: 64

約数和(自身を含む): 44271360

約数和(自身を除く): 24467992

約数列:

[1, 2, 4, 8, 13, 17, 23, 26, 34, 46, 52, 68, 92, 104, 136, 184, 221, 299, 391, 442, 487, 598, 782, 884, 974, 1196, 1564, 1768, 1948, 2392, 3128, 3896, 5083, 6331, 8279, 10166, 11201, 12662, 16558, 20332, 22402, 25324, 33116, 40664, 44804, 50648, 66232, 89608, 107627, 145613, 190417, 215254, 291226, 380834, 430508, 582452, 761668, 861016, 1164904, 1523336, 2475421, 4950842, 9901684, 19803368]

約数ペア:

[(1, 19803368), (2, 9901684), (4, 4950842), (8, 2475421), (13, 1523336), (17, 1164904), (23, 861016), (26, 761668), (34, 582452), (46, 430508), (52, 380834), (68, 291226), (92, 215254), (104, 190417), (136, 145613), (184, 107627), (221, 89608), (299, 66232), (391, 50648), (442, 44804), (487, 40664), (598, 33116), (782, 25324), (884, 22402), (974, 20332), (1196, 16558), (1564, 12662), (1768, 11201), (1948, 10166), (2392, 8279), (3128, 6331), (3896, 5083)]