21000455283

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{97}}^1\times {\mathrm{269}}^1\times {\mathrm{367}}^1$

素因数の和:796

約数の個数: 64

約数和(自身を含む): 30847703040

約数和(自身を除く): 9847247757

約数列:

[1, 3, 17, 43, 51, 97, 129, 269, 291, 367, 731, 807, 1101, 1649, 2193, 4171, 4573, 4947, 6239, 11567, 12513, 13719, 15781, 18717, 26093, 34701, 35599, 47343, 70907, 78279, 98723, 106797, 196639, 212721, 268277, 296169, 443581, 589917, 605183, 804831, 1121999, 1330743, 1530757, 1678291, 1815549, 3365997, 4245089, 4592271, 5034873, 9576131, 12735267, 19073983, 26022869, 28728393, 57221949, 72166513, 78068607, 162794227, 216499539, 411773633, 488382681, 1235320899, 7000151761, 21000455283]

約数ペア:

[(1, 21000455283), (3, 7000151761), (17, 1235320899), (43, 488382681), (51, 411773633), (97, 216499539), (129, 162794227), (269, 78068607), (291, 72166513), (367, 57221949), (731, 28728393), (807, 26022869), (1101, 19073983), (1649, 12735267), (2193, 9576131), (4171, 5034873), (4573, 4592271), (4947, 4245089), (6239, 3365997), (11567, 1815549), (12513, 1678291), (13719, 1530757), (15781, 1330743), (18717, 1121999), (26093, 804831), (34701, 605183), (35599, 589917), (47343, 443581), (70907, 296169), (78279, 268277), (98723, 212721), (106797, 196639)]