19918424

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{167}}^1\times {\mathrm{877}}^1$

素因数の和:1067

約数の個数: 32

約数和(自身を含む): 39826080

約数和(自身を除く): 19907656

約数列:

[1, 2, 4, 8, 17, 34, 68, 136, 167, 334, 668, 877, 1336, 1754, 2839, 3508, 5678, 7016, 11356, 14909, 22712, 29818, 59636, 119272, 146459, 292918, 585836, 1171672, 2489803, 4979606, 9959212, 19918424]

約数ペア:

[(1, 19918424), (2, 9959212), (4, 4979606), (8, 2489803), (17, 1171672), (34, 585836), (68, 292918), (136, 146459), (167, 119272), (334, 59636), (668, 29818), (877, 22712), (1336, 14909), (1754, 11356), (2839, 7016), (3508, 5678)]