21490168304

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{1721}}^1\times {\mathrm{70949}}^1$

素因数の和:72689

約数の個数: 40

約数和(自身を含む): 45449434800

約数和(自身を除く): 23959266496

約数列:

[1, 2, 4, 8, 11, 16, 22, 44, 88, 176, 1721, 3442, 6884, 13768, 18931, 27536, 37862, 70949, 75724, 141898, 151448, 283796, 302896, 567592, 780439, 1135184, 1560878, 3121756, 6243512, 12487024, 122103229, 244206458, 488412916, 976825832, 1343135519, 1953651664, 2686271038, 5372542076, 10745084152, 21490168304]

約数ペア:

[(1, 21490168304), (2, 10745084152), (4, 5372542076), (8, 2686271038), (11, 1953651664), (16, 1343135519), (22, 976825832), (44, 488412916), (88, 244206458), (176, 122103229), (1721, 12487024), (3442, 6243512), (6884, 3121756), (13768, 1560878), (18931, 1135184), (27536, 780439), (37862, 567592), (70949, 302896), (75724, 283796), (141898, 151448)]