18912296

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{563}}^1$

素因数の和:618

約数の個数: 64

約数和(自身を含む): 42638400

約数和(自身を除く): 23726104

約数列:

[1, 2, 4, 8, 13, 17, 19, 26, 34, 38, 52, 68, 76, 104, 136, 152, 221, 247, 323, 442, 494, 563, 646, 884, 988, 1126, 1292, 1768, 1976, 2252, 2584, 4199, 4504, 7319, 8398, 9571, 10697, 14638, 16796, 19142, 21394, 29276, 33592, 38284, 42788, 58552, 76568, 85576, 124423, 139061, 181849, 248846, 278122, 363698, 497692, 556244, 727396, 995384, 1112488, 1454792, 2364037, 4728074, 9456148, 18912296]

約数ペア:

[(1, 18912296), (2, 9456148), (4, 4728074), (8, 2364037), (13, 1454792), (17, 1112488), (19, 995384), (26, 727396), (34, 556244), (38, 497692), (52, 363698), (68, 278122), (76, 248846), (104, 181849), (136, 139061), (152, 124423), (221, 85576), (247, 76568), (323, 58552), (442, 42788), (494, 38284), (563, 33592), (646, 29276), (884, 21394), (988, 19142), (1126, 16796), (1292, 14638), (1768, 10697), (1976, 9571), (2252, 8398), (2584, 7319), (4199, 4504)]