199147977

素因数分解:

$3^5\times 7^1\times {\mathrm{47}}^2\times {\mathrm{53}}^1$

素因数の和:169

約数の個数: 72

約数和(自身を含む): 354908736

約数和(自身を除く): 155760759

約数列:

[1, 3, 7, 9, 21, 27, 47, 53, 63, 81, 141, 159, 189, 243, 329, 371, 423, 477, 567, 987, 1113, 1269, 1431, 1701, 2209, 2491, 2961, 3339, 3807, 4293, 6627, 7473, 8883, 10017, 11421, 12879, 15463, 17437, 19881, 22419, 26649, 30051, 46389, 52311, 59643, 67257, 79947, 90153, 117077, 139167, 156933, 178929, 201771, 351231, 417501, 470799, 536787, 605313, 819539, 1053693, 1252503, 1412397, 2458617, 3161079, 3757509, 4237191, 7375851, 9483237, 22127553, 28449711, 66382659, 199147977]

約数ペア:

[(1, 199147977), (3, 66382659), (7, 28449711), (9, 22127553), (21, 9483237), (27, 7375851), (47, 4237191), (53, 3757509), (63, 3161079), (81, 2458617), (141, 1412397), (159, 1252503), (189, 1053693), (243, 819539), (329, 605313), (371, 536787), (423, 470799), (477, 417501), (567, 351231), (987, 201771), (1113, 178929), (1269, 156933), (1431, 139167), (1701, 117077), (2209, 90153), (2491, 79947), (2961, 67257), (3339, 59643), (3807, 52311), (4293, 46389), (6627, 30051), (7473, 26649), (8883, 22419), (10017, 19881), (11421, 17437), (12879, 15463)]