19746558

素因数分解:

$2^1\times 3^3\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{1223}}^1$

素因数の和:1270

約数の個数: 64

約数和(自身を含む): 49351680

約数和(自身を除く): 29605122

約数列:

[1, 2, 3, 6, 9, 13, 18, 23, 26, 27, 39, 46, 54, 69, 78, 117, 138, 207, 234, 299, 351, 414, 598, 621, 702, 897, 1223, 1242, 1794, 2446, 2691, 3669, 5382, 7338, 8073, 11007, 15899, 16146, 22014, 28129, 31798, 33021, 47697, 56258, 66042, 84387, 95394, 143091, 168774, 253161, 286182, 365677, 429273, 506322, 731354, 759483, 858546, 1097031, 1518966, 2194062, 3291093, 6582186, 9873279, 19746558]

約数ペア:

[(1, 19746558), (2, 9873279), (3, 6582186), (6, 3291093), (9, 2194062), (13, 1518966), (18, 1097031), (23, 858546), (26, 759483), (27, 731354), (39, 506322), (46, 429273), (54, 365677), (69, 286182), (78, 253161), (117, 168774), (138, 143091), (207, 95394), (234, 84387), (299, 66042), (351, 56258), (414, 47697), (598, 33021), (621, 31798), (702, 28129), (897, 22014), (1223, 16146), (1242, 15899), (1794, 11007), (2446, 8073), (2691, 7338), (3669, 5382)]