21967967725

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{149}}^1\times {\mathrm{541}}^1\times {\mathrm{991}}^1$

素因数の和:1702

約数の個数: 48

約数和(自身を含む): 30001651200

約数和(自身を除く): 8033683475

約数列:

[1, 5, 11, 25, 55, 149, 275, 541, 745, 991, 1639, 2705, 3725, 4955, 5951, 8195, 10901, 13525, 24775, 29755, 40975, 54505, 80609, 147659, 148775, 272525, 403045, 536131, 738295, 886699, 1624249, 2015225, 2680655, 3691475, 4433495, 5897441, 8121245, 13403275, 22167475, 29487205, 40606225, 79883519, 147436025, 399417595, 878718709, 1997087975, 4393593545, 21967967725]

約数ペア:

[(1, 21967967725), (5, 4393593545), (11, 1997087975), (25, 878718709), (55, 399417595), (149, 147436025), (275, 79883519), (541, 40606225), (745, 29487205), (991, 22167475), (1639, 13403275), (2705, 8121245), (3725, 5897441), (4955, 4433495), (5951, 3691475), (8195, 2680655), (10901, 2015225), (13525, 1624249), (24775, 886699), (29755, 738295), (40975, 536131), (54505, 403045), (80609, 272525), (147659, 148775)]