21859929

素因数分解:

$3^3\times 7^2\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1$

素因数の和:108

約数の個数: 96

約数和(自身を含む): 42900480

約数和(自身を除く): 21040551

約数列:

[1, 3, 7, 9, 13, 21, 27, 31, 39, 41, 49, 63, 91, 93, 117, 123, 147, 189, 217, 273, 279, 287, 351, 369, 403, 441, 533, 637, 651, 819, 837, 861, 1107, 1209, 1271, 1323, 1519, 1599, 1911, 1953, 2009, 2457, 2583, 2821, 3627, 3731, 3813, 4557, 4797, 5733, 5859, 6027, 7749, 8463, 8897, 10881, 11193, 11439, 13671, 14391, 16523, 17199, 18081, 19747, 25389, 26117, 26691, 33579, 34317, 41013, 49569, 54243, 59241, 62279, 76167, 78351, 80073, 100737, 115661, 148707, 177723, 186837, 235053, 240219, 346983, 446121, 533169, 560511, 705159, 809627, 1040949, 1681533, 2428881, 3122847, 7286643, 21859929]

約数ペア:

[(1, 21859929), (3, 7286643), (7, 3122847), (9, 2428881), (13, 1681533), (21, 1040949), (27, 809627), (31, 705159), (39, 560511), (41, 533169), (49, 446121), (63, 346983), (91, 240219), (93, 235053), (117, 186837), (123, 177723), (147, 148707), (189, 115661), (217, 100737), (273, 80073), (279, 78351), (287, 76167), (351, 62279), (369, 59241), (403, 54243), (441, 49569), (533, 41013), (637, 34317), (651, 33579), (819, 26691), (837, 26117), (861, 25389), (1107, 19747), (1209, 18081), (1271, 17199), (1323, 16523), (1519, 14391), (1599, 13671), (1911, 11439), (1953, 11193), (2009, 10881), (2457, 8897), (2583, 8463), (2821, 7749), (3627, 6027), (3731, 5859), (3813, 5733), (4557, 4797)]