21127128

素因数分解:

$2^3\times 3^1\times {\mathrm{11}}^1\times {\mathrm{79}}^1\times {\mathrm{1013}}^1$

素因数の和:1112

約数の個数: 64

約数和(自身を含む): 58406400

約数和(自身を除く): 37279272

約数列:

[1, 2, 3, 4, 6, 8, 11, 12, 22, 24, 33, 44, 66, 79, 88, 132, 158, 237, 264, 316, 474, 632, 869, 948, 1013, 1738, 1896, 2026, 2607, 3039, 3476, 4052, 5214, 6078, 6952, 8104, 10428, 11143, 12156, 20856, 22286, 24312, 33429, 44572, 66858, 80027, 89144, 133716, 160054, 240081, 267432, 320108, 480162, 640216, 880297, 960324, 1760594, 1920648, 2640891, 3521188, 5281782, 7042376, 10563564, 21127128]

約数ペア:

[(1, 21127128), (2, 10563564), (3, 7042376), (4, 5281782), (6, 3521188), (8, 2640891), (11, 1920648), (12, 1760594), (22, 960324), (24, 880297), (33, 640216), (44, 480162), (66, 320108), (79, 267432), (88, 240081), (132, 160054), (158, 133716), (237, 89144), (264, 80027), (316, 66858), (474, 44572), (632, 33429), (869, 24312), (948, 22286), (1013, 20856), (1738, 12156), (1896, 11143), (2026, 10428), (2607, 8104), (3039, 6952), (3476, 6078), (4052, 5214)]