21256872

素因数分解:

$2^3\times 3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{9733}}^1$

素因数の和:9762

約数の個数: 64

約数和(自身を含む): 65412480

約数和(自身を除く): 44155608

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 13, 14, 21, 24, 26, 28, 39, 42, 52, 56, 78, 84, 91, 104, 156, 168, 182, 273, 312, 364, 546, 728, 1092, 2184, 9733, 19466, 29199, 38932, 58398, 68131, 77864, 116796, 126529, 136262, 204393, 233592, 253058, 272524, 379587, 408786, 506116, 545048, 759174, 817572, 885703, 1012232, 1518348, 1635144, 1771406, 2657109, 3036696, 3542812, 5314218, 7085624, 10628436, 21256872]

約数ペア:

[(1, 21256872), (2, 10628436), (3, 7085624), (4, 5314218), (6, 3542812), (7, 3036696), (8, 2657109), (12, 1771406), (13, 1635144), (14, 1518348), (21, 1012232), (24, 885703), (26, 817572), (28, 759174), (39, 545048), (42, 506116), (52, 408786), (56, 379587), (78, 272524), (84, 253058), (91, 233592), (104, 204393), (156, 136262), (168, 126529), (182, 116796), (273, 77864), (312, 68131), (364, 58398), (546, 38932), (728, 29199), (1092, 19466), (2184, 9733)]