189868887

素因数分解:

$3^3\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{811}}^1$

素因数の和:885

約数の個数: 64

約数和(自身を含む): 327398400

約数和(自身を除く): 137529513

約数列:

[1, 3, 9, 13, 23, 27, 29, 39, 69, 87, 117, 207, 261, 299, 351, 377, 621, 667, 783, 811, 897, 1131, 2001, 2433, 2691, 3393, 6003, 7299, 8073, 8671, 10179, 10543, 18009, 18653, 21897, 23519, 26013, 31629, 55959, 70557, 78039, 94887, 167877, 211671, 234117, 242489, 284661, 305747, 503631, 540937, 635013, 727467, 917241, 1622811, 2182401, 2751723, 4868433, 6547203, 7032181, 8255169, 14605299, 21096543, 63289629, 189868887]

約数ペア:

[(1, 189868887), (3, 63289629), (9, 21096543), (13, 14605299), (23, 8255169), (27, 7032181), (29, 6547203), (39, 4868433), (69, 2751723), (87, 2182401), (117, 1622811), (207, 917241), (261, 727467), (299, 635013), (351, 540937), (377, 503631), (621, 305747), (667, 284661), (783, 242489), (811, 234117), (897, 211671), (1131, 167877), (2001, 94887), (2433, 78039), (2691, 70557), (3393, 55959), (6003, 31629), (7299, 26013), (8073, 23519), (8671, 21897), (10179, 18653), (10543, 18009)]