21281753735

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{3023}}^1\times {\mathrm{4129}}^1$

素因数の和:7199

約数の個数: 32

約数和(自身を含む): 28774932480

約数和(自身を除く): 7493178745

約数列:

[1, 5, 11, 31, 55, 155, 341, 1705, 3023, 4129, 15115, 20645, 33253, 45419, 93713, 127999, 166265, 227095, 468565, 639995, 1030843, 1407989, 5154215, 7039945, 12481967, 62409835, 137301637, 386940977, 686508185, 1934704885, 4256350747, 21281753735]

約数ペア:

[(1, 21281753735), (5, 4256350747), (11, 1934704885), (31, 686508185), (55, 386940977), (155, 137301637), (341, 62409835), (1705, 12481967), (3023, 7039945), (4129, 5154215), (15115, 1407989), (20645, 1030843), (33253, 639995), (45419, 468565), (93713, 227095), (127999, 166265)]