221578983

素因数分解:

$3^4\times {\mathrm{67}}^1\times {\mathrm{40829}}^1$

素因数の和:40908

約数の個数: 20

約数和(自身を含む): 335949240

約数和(自身を除く): 114370257

約数列:

[1, 3, 9, 27, 67, 81, 201, 603, 1809, 5427, 40829, 122487, 367461, 1102383, 2735543, 3307149, 8206629, 24619887, 73859661, 221578983]

約数ペア:

[(1, 221578983), (3, 73859661), (9, 24619887), (27, 8206629), (67, 3307149), (81, 2735543), (201, 1102383), (603, 367461), (1809, 122487), (5427, 40829)]