18719584

素因数分解:

$2^5\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{2647}}^1$

素因数の和:2687

約数の個数: 48

約数和(自身を含む): 42039648

約数和(自身を除く): 23320064

約数列:

[1, 2, 4, 8, 13, 16, 17, 26, 32, 34, 52, 68, 104, 136, 208, 221, 272, 416, 442, 544, 884, 1768, 2647, 3536, 5294, 7072, 10588, 21176, 34411, 42352, 44999, 68822, 84704, 89998, 137644, 179996, 275288, 359992, 550576, 584987, 719984, 1101152, 1169974, 1439968, 2339948, 4679896, 9359792, 18719584]

約数ペア:

[(1, 18719584), (2, 9359792), (4, 4679896), (8, 2339948), (13, 1439968), (16, 1169974), (17, 1101152), (26, 719984), (32, 584987), (34, 550576), (52, 359992), (68, 275288), (104, 179996), (136, 137644), (208, 89998), (221, 84704), (272, 68822), (416, 44999), (442, 42352), (544, 34411), (884, 21176), (1768, 10588), (2647, 7072), (3536, 5294)]