21070294587

素因数分解:

$3^3\times {\mathrm{19}}^2\times {\mathrm{89}}^1\times {\mathrm{107}}^1\times {\mathrm{227}}^1$

素因数の和:470

約数の個数: 96

約数和(自身を含む): 33774278400

約数和(自身を除く): 12703983813

約数列:

[1, 3, 9, 19, 27, 57, 89, 107, 171, 227, 267, 321, 361, 513, 681, 801, 963, 1083, 1691, 2033, 2043, 2403, 2889, 3249, 4313, 5073, 6099, 6129, 9523, 9747, 12939, 15219, 18297, 20203, 24289, 28569, 32129, 38627, 38817, 45657, 54891, 60609, 72867, 81947, 85707, 96387, 115881, 116451, 180937, 181827, 218601, 245841, 257121, 289161, 347643, 383857, 461491, 542811, 545481, 655803, 737523, 867483, 1042929, 1151571, 1384473, 1628433, 2161721, 2212569, 3437803, 3454713, 4153419, 4885299, 6485163, 7293283, 8768329, 10313409, 10364139, 12460257, 19455489, 21879849, 26304987, 30940227, 41072699, 58366467, 65639547, 78914961, 92820681, 123218097, 196918641, 236744883, 369654291, 780381281, 1108962873, 2341143843, 7023431529, 21070294587]

約数ペア:

[(1, 21070294587), (3, 7023431529), (9, 2341143843), (19, 1108962873), (27, 780381281), (57, 369654291), (89, 236744883), (107, 196918641), (171, 123218097), (227, 92820681), (267, 78914961), (321, 65639547), (361, 58366467), (513, 41072699), (681, 30940227), (801, 26304987), (963, 21879849), (1083, 19455489), (1691, 12460257), (2033, 10364139), (2043, 10313409), (2403, 8768329), (2889, 7293283), (3249, 6485163), (4313, 4885299), (5073, 4153419), (6099, 3454713), (6129, 3437803), (9523, 2212569), (9747, 2161721), (12939, 1628433), (15219, 1384473), (18297, 1151571), (20203, 1042929), (24289, 867483), (28569, 737523), (32129, 655803), (38627, 545481), (38817, 542811), (45657, 461491), (54891, 383857), (60609, 347643), (72867, 289161), (81947, 257121), (85707, 245841), (96387, 218601), (115881, 181827), (116451, 180937)]