21239469

素因数分解:

$3^3\times {\mathrm{59}}^1\times {\mathrm{67}}^1\times {\mathrm{199}}^1$

素因数の和:334

約数の個数: 32

約数和(自身を含む): 32640000

約数和(自身を除く): 11400531

約数列:

[1, 3, 9, 27, 59, 67, 177, 199, 201, 531, 597, 603, 1593, 1791, 1809, 3953, 5373, 11741, 11859, 13333, 35223, 35577, 39999, 105669, 106731, 119997, 317007, 359991, 786647, 2359941, 7079823, 21239469]

約数ペア:

[(1, 21239469), (3, 7079823), (9, 2359941), (27, 786647), (59, 359991), (67, 317007), (177, 119997), (199, 106731), (201, 105669), (531, 39999), (597, 35577), (603, 35223), (1593, 13333), (1791, 11859), (1809, 11741), (3953, 5373)]