21165184

素因数分解:

$2^7\times {\mathrm{37}}^1\times {\mathrm{41}}^1\times {\mathrm{109}}^1$

素因数の和:201

約数の個数: 64

約数和(自身を含む): 44767800

約数和(自身を除く): 23602616

約数列:

[1, 2, 4, 8, 16, 32, 37, 41, 64, 74, 82, 109, 128, 148, 164, 218, 296, 328, 436, 592, 656, 872, 1184, 1312, 1517, 1744, 2368, 2624, 3034, 3488, 4033, 4469, 4736, 5248, 6068, 6976, 8066, 8938, 12136, 13952, 16132, 17876, 24272, 32264, 35752, 48544, 64528, 71504, 97088, 129056, 143008, 165353, 194176, 258112, 286016, 330706, 516224, 572032, 661412, 1322824, 2645648, 5291296, 10582592, 21165184]

約数ペア:

[(1, 21165184), (2, 10582592), (4, 5291296), (8, 2645648), (16, 1322824), (32, 661412), (37, 572032), (41, 516224), (64, 330706), (74, 286016), (82, 258112), (109, 194176), (128, 165353), (148, 143008), (164, 129056), (218, 97088), (296, 71504), (328, 64528), (436, 48544), (592, 35752), (656, 32264), (872, 24272), (1184, 17876), (1312, 16132), (1517, 13952), (1744, 12136), (2368, 8938), (2624, 8066), (3034, 6976), (3488, 6068), (4033, 5248), (4469, 4736)]