21014778727935

素因数分解:

$3^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{643}}^1\times {\mathrm{10229231}}^1$

素因数の和:10229956

約数の個数: 48

約数和(自身を含む): 36996104291328

約数和(自身を除く): 15981325563393

約数列:

[1, 3, 5, 9, 15, 45, 71, 213, 355, 639, 643, 1065, 1929, 3195, 3215, 5787, 9645, 28935, 45653, 136959, 228265, 410877, 684795, 2054385, 10229231, 30687693, 51146155, 92063079, 153438465, 460315395, 726275401, 2178826203, 3631377005, 6536478609, 6577395533, 10894131015, 19732186599, 32682393045, 32886977665, 59196559797, 98660932995, 295982798985, 466995082843, 1400985248529, 2334975414215, 4202955745587, 7004926242645, 21014778727935]

約数ペア:

[(1, 21014778727935), (3, 7004926242645), (5, 4202955745587), (9, 2334975414215), (15, 1400985248529), (45, 466995082843), (71, 295982798985), (213, 98660932995), (355, 59196559797), (639, 32886977665), (643, 32682393045), (1065, 19732186599), (1929, 10894131015), (3195, 6577395533), (3215, 6536478609), (5787, 3631377005), (9645, 2178826203), (28935, 726275401), (45653, 460315395), (136959, 153438465), (228265, 92063079), (410877, 51146155), (684795, 30687693), (2054385, 10229231)]