17981262

素因数分解:

$2^1\times 3^2\times {\mathrm{13}}^2\times {\mathrm{23}}^1\times {\mathrm{257}}^1$

素因数の和:314

約数の個数: 72

約数和(自身を含む): 44192304

約数和(自身を除く): 26211042

約数列:

[1, 2, 3, 6, 9, 13, 18, 23, 26, 39, 46, 69, 78, 117, 138, 169, 207, 234, 257, 299, 338, 414, 507, 514, 598, 771, 897, 1014, 1521, 1542, 1794, 2313, 2691, 3042, 3341, 3887, 4626, 5382, 5911, 6682, 7774, 10023, 11661, 11822, 17733, 20046, 23322, 30069, 34983, 35466, 43433, 53199, 60138, 69966, 76843, 86866, 106398, 130299, 153686, 230529, 260598, 390897, 461058, 691587, 781794, 998959, 1383174, 1997918, 2996877, 5993754, 8990631, 17981262]

約数ペア:

[(1, 17981262), (2, 8990631), (3, 5993754), (6, 2996877), (9, 1997918), (13, 1383174), (18, 998959), (23, 781794), (26, 691587), (39, 461058), (46, 390897), (69, 260598), (78, 230529), (117, 153686), (138, 130299), (169, 106398), (207, 86866), (234, 76843), (257, 69966), (299, 60138), (338, 53199), (414, 43433), (507, 35466), (514, 34983), (598, 30069), (771, 23322), (897, 20046), (1014, 17733), (1521, 11822), (1542, 11661), (1794, 10023), (2313, 7774), (2691, 6682), (3042, 5911), (3341, 5382), (3887, 4626)]