21917491088

素因数分解:

$2^4\times {\mathrm{37}}^1\times {\mathrm{139}}^1\times {\mathrm{266351}}^1$

素因数の和:266535

約数の個数: 40

約数和(自身を含む): 43926771840

約数和(自身を除く): 22009280752

約数列:

[1, 2, 4, 8, 16, 37, 74, 139, 148, 278, 296, 556, 592, 1112, 2224, 5143, 10286, 20572, 41144, 82288, 266351, 532702, 1065404, 2130808, 4261616, 9854987, 19709974, 37022789, 39419948, 74045578, 78839896, 148091156, 157679792, 296182312, 592364624, 1369843193, 2739686386, 5479372772, 10958745544, 21917491088]

約数ペア:

[(1, 21917491088), (2, 10958745544), (4, 5479372772), (8, 2739686386), (16, 1369843193), (37, 592364624), (74, 296182312), (139, 157679792), (148, 148091156), (278, 78839896), (296, 74045578), (556, 39419948), (592, 37022789), (1112, 19709974), (2224, 9854987), (5143, 4261616), (10286, 2130808), (20572, 1065404), (41144, 532702), (82288, 266351)]