21601782447

素因数分解:

$3^1\times 7^2\times {\mathrm{71}}^1\times {\mathrm{157}}^1\times {\mathrm{13183}}^1$

素因数の和:13428

約数の個数: 48

約数和(自身を含む): 34195709952

約数和(自身を除く): 12593927505

約数列:

[1, 3, 7, 21, 49, 71, 147, 157, 213, 471, 497, 1099, 1491, 3297, 3479, 7693, 10437, 11147, 13183, 23079, 33441, 39549, 78029, 92281, 234087, 276843, 546203, 645967, 935993, 1638609, 1937901, 2069731, 2807979, 6209193, 6551951, 14488117, 19655853, 43464351, 45863657, 101416819, 137590971, 146950901, 304250457, 440852703, 1028656307, 3085968921, 7200594149, 21601782447]

約数ペア:

[(1, 21601782447), (3, 7200594149), (7, 3085968921), (21, 1028656307), (49, 440852703), (71, 304250457), (147, 146950901), (157, 137590971), (213, 101416819), (471, 45863657), (497, 43464351), (1099, 19655853), (1491, 14488117), (3297, 6551951), (3479, 6209193), (7693, 2807979), (10437, 2069731), (11147, 1937901), (13183, 1638609), (23079, 935993), (33441, 645967), (39549, 546203), (78029, 276843), (92281, 234087)]