20125927731

素因数分解:

$3^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{83}}^1\times {\mathrm{223}}^1\times {\mathrm{569}}^1$

素因数の和:905

約数の個数: 96

約数和(自身を含む): 34234583040

約数和(自身を除く): 14108655309

約数列:

[1, 3, 7, 13, 21, 39, 49, 83, 91, 147, 223, 249, 273, 569, 581, 637, 669, 1079, 1561, 1707, 1743, 1911, 2899, 3237, 3983, 4067, 4683, 7397, 7553, 8697, 10927, 11949, 12201, 18509, 20293, 22191, 22659, 27881, 32781, 47227, 51779, 52871, 55527, 60879, 83643, 126887, 129563, 141681, 142051, 155337, 158613, 240617, 330589, 362453, 380661, 388689, 426153, 613951, 721851, 888209, 906941, 991767, 1087359, 1649531, 1684319, 1841853, 2314123, 2664627, 2720823, 4297657, 4948593, 5052957, 6217463, 6942369, 10531621, 11546717, 11790233, 12892971, 18652389, 30083599, 31594863, 34640151, 35370699, 73721347, 80827019, 90250797, 136911073, 221164041, 242481057, 410733219, 516049429, 958377511, 1548148287, 2875132533, 6708642577, 20125927731]

約数ペア:

[(1, 20125927731), (3, 6708642577), (7, 2875132533), (13, 1548148287), (21, 958377511), (39, 516049429), (49, 410733219), (83, 242481057), (91, 221164041), (147, 136911073), (223, 90250797), (249, 80827019), (273, 73721347), (569, 35370699), (581, 34640151), (637, 31594863), (669, 30083599), (1079, 18652389), (1561, 12892971), (1707, 11790233), (1743, 11546717), (1911, 10531621), (2899, 6942369), (3237, 6217463), (3983, 5052957), (4067, 4948593), (4683, 4297657), (7397, 2720823), (7553, 2664627), (8697, 2314123), (10927, 1841853), (11949, 1684319), (12201, 1649531), (18509, 1087359), (20293, 991767), (22191, 906941), (22659, 888209), (27881, 721851), (32781, 613951), (47227, 426153), (51779, 388689), (52871, 380661), (55527, 362453), (60879, 330589), (83643, 240617), (126887, 158613), (129563, 155337), (141681, 142051)]