221321375

素因数分解:

$5^3\times {\mathrm{11}}^1\times {\mathrm{53}}^1\times {\mathrm{3037}}^1$

素因数の和:3116

約数の個数: 32

約数和(自身を含む): 307105344

約数和(自身を除く): 85783969

約数列:

[1, 5, 11, 25, 53, 55, 125, 265, 275, 583, 1325, 1375, 2915, 3037, 6625, 14575, 15185, 33407, 72875, 75925, 160961, 167035, 379625, 804805, 835175, 1770571, 4024025, 4175875, 8852855, 20120125, 44264275, 221321375]

約数ペア:

[(1, 221321375), (5, 44264275), (11, 20120125), (25, 8852855), (53, 4175875), (55, 4024025), (125, 1770571), (265, 835175), (275, 804805), (583, 379625), (1325, 167035), (1375, 160961), (2915, 75925), (3037, 72875), (6625, 33407), (14575, 15185)]