21000656157

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{137}}^1\times {\mathrm{631}}^1\times {\mathrm{6229}}^1$

素因数の和:7013

約数の個数: 32

約数和(自身を含む): 30427918080

約数和(自身を除く): 9427261923

約数列:

[1, 3, 13, 39, 137, 411, 631, 1781, 1893, 5343, 6229, 8203, 18687, 24609, 80977, 86447, 242931, 259341, 853373, 1123811, 2560119, 3371433, 3930499, 11093849, 11791497, 33281547, 51096487, 153289461, 538478363, 1615435089, 7000218719, 21000656157]

約数ペア:

[(1, 21000656157), (3, 7000218719), (13, 1615435089), (39, 538478363), (137, 153289461), (411, 51096487), (631, 33281547), (1781, 11791497), (1893, 11093849), (5343, 3930499), (6229, 3371433), (8203, 2560119), (18687, 1123811), (24609, 853373), (80977, 259341), (86447, 242931)]