21362744

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{281}}^1$

素因数の和:360

約数の個数: 64

約数和(自身を含む): 46902240

約数和(自身を除く): 25539496

約数列:

[1, 2, 4, 8, 13, 17, 26, 34, 43, 52, 68, 86, 104, 136, 172, 221, 281, 344, 442, 559, 562, 731, 884, 1118, 1124, 1462, 1768, 2236, 2248, 2924, 3653, 4472, 4777, 5848, 7306, 9503, 9554, 12083, 14612, 19006, 19108, 24166, 29224, 38012, 38216, 48332, 62101, 76024, 96664, 124202, 157079, 205411, 248404, 314158, 410822, 496808, 628316, 821644, 1256632, 1643288, 2670343, 5340686, 10681372, 21362744]

約数ペア:

[(1, 21362744), (2, 10681372), (4, 5340686), (8, 2670343), (13, 1643288), (17, 1256632), (26, 821644), (34, 628316), (43, 496808), (52, 410822), (68, 314158), (86, 248404), (104, 205411), (136, 157079), (172, 124202), (221, 96664), (281, 76024), (344, 62101), (442, 48332), (559, 38216), (562, 38012), (731, 29224), (884, 24166), (1118, 19108), (1124, 19006), (1462, 14612), (1768, 12083), (2236, 9554), (2248, 9503), (2924, 7306), (3653, 5848), (4472, 4777)]