21026824

素因数分解:

$2^3\times 7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{1699}}^1$

素因数の和:1742

約数の個数: 64

約数和(自身を含む): 51408000

約数和(自身を除く): 30381176

約数列:

[1, 2, 4, 7, 8, 13, 14, 17, 26, 28, 34, 52, 56, 68, 91, 104, 119, 136, 182, 221, 238, 364, 442, 476, 728, 884, 952, 1547, 1699, 1768, 3094, 3398, 6188, 6796, 11893, 12376, 13592, 22087, 23786, 28883, 44174, 47572, 57766, 88348, 95144, 115532, 154609, 176696, 202181, 231064, 309218, 375479, 404362, 618436, 750958, 808724, 1236872, 1501916, 1617448, 2628353, 3003832, 5256706, 10513412, 21026824]

約数ペア:

[(1, 21026824), (2, 10513412), (4, 5256706), (7, 3003832), (8, 2628353), (13, 1617448), (14, 1501916), (17, 1236872), (26, 808724), (28, 750958), (34, 618436), (52, 404362), (56, 375479), (68, 309218), (91, 231064), (104, 202181), (119, 176696), (136, 154609), (182, 115532), (221, 95144), (238, 88348), (364, 57766), (442, 47572), (476, 44174), (728, 28883), (884, 23786), (952, 22087), (1547, 13592), (1699, 12376), (1768, 11893), (3094, 6796), (3398, 6188)]