21288896

素因数分解:

$2^6\times {\mathrm{17}}^2\times {\mathrm{1151}}^1$

素因数の和:1197

約数の個数: 42

約数和(自身を含む): 44915328

約数和(自身を除く): 23626432

約数列:

[1, 2, 4, 8, 16, 17, 32, 34, 64, 68, 136, 272, 289, 544, 578, 1088, 1151, 1156, 2302, 2312, 4604, 4624, 9208, 9248, 18416, 18496, 19567, 36832, 39134, 73664, 78268, 156536, 313072, 332639, 626144, 665278, 1252288, 1330556, 2661112, 5322224, 10644448, 21288896]

約数ペア:

[(1, 21288896), (2, 10644448), (4, 5322224), (8, 2661112), (16, 1330556), (17, 1252288), (32, 665278), (34, 626144), (64, 332639), (68, 313072), (136, 156536), (272, 78268), (289, 73664), (544, 39134), (578, 36832), (1088, 19567), (1151, 18496), (1156, 18416), (2302, 9248), (2312, 9208), (4604, 4624)]