218724561

素因数分解:

$3^2\times {\mathrm{11}}^3\times {\mathrm{19}}^1\times {\mathrm{31}}^2$

素因数の和:120

約数の個数: 72

約数和(自身を含む): 377975520

約数和(自身を除く): 159250959

約数列:

[1, 3, 9, 11, 19, 31, 33, 57, 93, 99, 121, 171, 209, 279, 341, 363, 589, 627, 961, 1023, 1089, 1331, 1767, 1881, 2299, 2883, 3069, 3751, 3993, 5301, 6479, 6897, 8649, 10571, 11253, 11979, 18259, 19437, 20691, 25289, 31713, 33759, 41261, 54777, 58311, 71269, 75867, 95139, 116281, 123783, 164331, 200849, 213807, 227601, 348843, 371349, 602547, 641421, 783959, 1046529, 1279091, 1807641, 2209339, 2351877, 3837273, 6628017, 7055631, 11511819, 19884051, 24302729, 72908187, 218724561]

約数ペア:

[(1, 218724561), (3, 72908187), (9, 24302729), (11, 19884051), (19, 11511819), (31, 7055631), (33, 6628017), (57, 3837273), (93, 2351877), (99, 2209339), (121, 1807641), (171, 1279091), (209, 1046529), (279, 783959), (341, 641421), (363, 602547), (589, 371349), (627, 348843), (961, 227601), (1023, 213807), (1089, 200849), (1331, 164331), (1767, 123783), (1881, 116281), (2299, 95139), (2883, 75867), (3069, 71269), (3751, 58311), (3993, 54777), (5301, 41261), (6479, 33759), (6897, 31713), (8649, 25289), (10571, 20691), (11253, 19437), (11979, 18259)]