21115665568

素因数分解:

$2^5\times {\mathrm{23}}^2\times {\mathrm{37}}^1\times {\mathrm{33713}}^1$

素因数の和:33806

約数の個数: 72

約数和(自身を含む): 44633357748

約数和(自身を除く): 23517692180

約数列:

[1, 2, 4, 8, 16, 23, 32, 37, 46, 74, 92, 148, 184, 296, 368, 529, 592, 736, 851, 1058, 1184, 1702, 2116, 3404, 4232, 6808, 8464, 13616, 16928, 19573, 27232, 33713, 39146, 67426, 78292, 134852, 156584, 269704, 313168, 539408, 626336, 775399, 1078816, 1247381, 1550798, 2494762, 3101596, 4989524, 6203192, 9979048, 12406384, 17834177, 19958096, 24812768, 28689763, 35668354, 39916192, 57379526, 71336708, 114759052, 142673416, 229518104, 285346832, 459036208, 570693664, 659864549, 918072416, 1319729098, 2639458196, 5278916392, 10557832784, 21115665568]

約数ペア:

[(1, 21115665568), (2, 10557832784), (4, 5278916392), (8, 2639458196), (16, 1319729098), (23, 918072416), (32, 659864549), (37, 570693664), (46, 459036208), (74, 285346832), (92, 229518104), (148, 142673416), (184, 114759052), (296, 71336708), (368, 57379526), (529, 39916192), (592, 35668354), (736, 28689763), (851, 24812768), (1058, 19958096), (1184, 17834177), (1702, 12406384), (2116, 9979048), (3404, 6203192), (4232, 4989524), (6808, 3101596), (8464, 2494762), (13616, 1550798), (16928, 1247381), (19573, 1078816), (27232, 775399), (33713, 626336), (39146, 539408), (67426, 313168), (78292, 269704), (134852, 156584)]