217880955

素因数分解:

$3^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{1493}}^1$

素因数の和:1577

約数の個数: 64

約数和(自身を含む): 413061120

約数和(自身を除く): 195180165

約数列:

[1, 3, 5, 9, 15, 23, 27, 45, 47, 69, 115, 135, 141, 207, 235, 345, 423, 621, 705, 1035, 1081, 1269, 1493, 2115, 3105, 3243, 4479, 5405, 6345, 7465, 9729, 13437, 16215, 22395, 29187, 34339, 40311, 48645, 67185, 70171, 103017, 145935, 171695, 201555, 210513, 309051, 350855, 515085, 631539, 927153, 1052565, 1545255, 1613933, 1894617, 3157695, 4635765, 4841799, 8069665, 9473085, 14525397, 24208995, 43576191, 72626985, 217880955]

約数ペア:

[(1, 217880955), (3, 72626985), (5, 43576191), (9, 24208995), (15, 14525397), (23, 9473085), (27, 8069665), (45, 4841799), (47, 4635765), (69, 3157695), (115, 1894617), (135, 1613933), (141, 1545255), (207, 1052565), (235, 927153), (345, 631539), (423, 515085), (621, 350855), (705, 309051), (1035, 210513), (1081, 201555), (1269, 171695), (1493, 145935), (2115, 103017), (3105, 70171), (3243, 67185), (4479, 48645), (5405, 40311), (6345, 34339), (7465, 29187), (9729, 22395), (13437, 16215)]