18487908

素因数分解:

$2^2\times 3^2\times {\mathrm{17}}^2\times {\mathrm{1777}}^1$

素因数の和:1821

約数の個数: 54

約数和(自身を含む): 49671986

約数和(自身を除く): 31184078

約数列:

[1, 2, 3, 4, 6, 9, 12, 17, 18, 34, 36, 51, 68, 102, 153, 204, 289, 306, 578, 612, 867, 1156, 1734, 1777, 2601, 3468, 3554, 5202, 5331, 7108, 10404, 10662, 15993, 21324, 30209, 31986, 60418, 63972, 90627, 120836, 181254, 271881, 362508, 513553, 543762, 1027106, 1087524, 1540659, 2054212, 3081318, 4621977, 6162636, 9243954, 18487908]

約数ペア:

[(1, 18487908), (2, 9243954), (3, 6162636), (4, 4621977), (6, 3081318), (9, 2054212), (12, 1540659), (17, 1087524), (18, 1027106), (34, 543762), (36, 513553), (51, 362508), (68, 271881), (102, 181254), (153, 120836), (204, 90627), (289, 63972), (306, 60418), (578, 31986), (612, 30209), (867, 21324), (1156, 15993), (1734, 10662), (1777, 10404), (2601, 7108), (3468, 5331), (3554, 5202)]