21457436

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{233}}^1$

素因数の和:291

約数の個数: 96

約数和(自身を含む): 52835328

約数和(自身を除く): 31377892

約数列:

[1, 2, 4, 7, 11, 13, 14, 22, 23, 26, 28, 44, 46, 52, 77, 91, 92, 143, 154, 161, 182, 233, 253, 286, 299, 308, 322, 364, 466, 506, 572, 598, 644, 932, 1001, 1012, 1196, 1631, 1771, 2002, 2093, 2563, 3029, 3262, 3289, 3542, 4004, 4186, 5126, 5359, 6058, 6524, 6578, 7084, 8372, 10252, 10718, 12116, 13156, 17941, 21203, 21436, 23023, 33319, 35882, 37513, 42406, 46046, 58949, 66638, 69667, 71764, 75026, 84812, 92092, 117898, 133276, 139334, 150052, 233233, 235796, 278668, 412643, 466466, 487669, 766337, 825286, 932932, 975338, 1532674, 1650572, 1950676, 3065348, 5364359, 10728718, 21457436]

約数ペア:

[(1, 21457436), (2, 10728718), (4, 5364359), (7, 3065348), (11, 1950676), (13, 1650572), (14, 1532674), (22, 975338), (23, 932932), (26, 825286), (28, 766337), (44, 487669), (46, 466466), (52, 412643), (77, 278668), (91, 235796), (92, 233233), (143, 150052), (154, 139334), (161, 133276), (182, 117898), (233, 92092), (253, 84812), (286, 75026), (299, 71764), (308, 69667), (322, 66638), (364, 58949), (466, 46046), (506, 42406), (572, 37513), (598, 35882), (644, 33319), (932, 23023), (1001, 21436), (1012, 21203), (1196, 17941), (1631, 13156), (1771, 12116), (2002, 10718), (2093, 10252), (2563, 8372), (3029, 7084), (3262, 6578), (3289, 6524), (3542, 6058), (4004, 5359), (4186, 5126)]