21851874

素因数分解:

$2^1\times 3^2\times {\mathrm{11}}^2\times {\mathrm{79}}^1\times {\mathrm{127}}^1$

素因数の和:236

約数の個数: 72

約数和(自身を含む): 53114880

約数和(自身を除く): 31263006

約数列:

[1, 2, 3, 6, 9, 11, 18, 22, 33, 66, 79, 99, 121, 127, 158, 198, 237, 242, 254, 363, 381, 474, 711, 726, 762, 869, 1089, 1143, 1397, 1422, 1738, 2178, 2286, 2607, 2794, 4191, 5214, 7821, 8382, 9559, 10033, 12573, 15367, 15642, 19118, 20066, 25146, 28677, 30099, 30734, 46101, 57354, 60198, 86031, 90297, 92202, 110363, 138303, 172062, 180594, 220726, 276606, 331089, 662178, 993267, 1213993, 1986534, 2427986, 3641979, 7283958, 10925937, 21851874]

約数ペア:

[(1, 21851874), (2, 10925937), (3, 7283958), (6, 3641979), (9, 2427986), (11, 1986534), (18, 1213993), (22, 993267), (33, 662178), (66, 331089), (79, 276606), (99, 220726), (121, 180594), (127, 172062), (158, 138303), (198, 110363), (237, 92202), (242, 90297), (254, 86031), (363, 60198), (381, 57354), (474, 46101), (711, 30734), (726, 30099), (762, 28677), (869, 25146), (1089, 20066), (1143, 19118), (1397, 15642), (1422, 15367), (1738, 12573), (2178, 10033), (2286, 9559), (2607, 8382), (2794, 7821), (4191, 5214)]