221120216

素因数分解:

$2^3\times {\mathrm{41}}^1\times {\mathrm{523}}^1\times {\mathrm{1289}}^1$

素因数の和:1859

約数の個数: 32

約数和(自身を含む): 425854800

約数和(自身を除く): 204734584

約数列:

[1, 2, 4, 8, 41, 82, 164, 328, 523, 1046, 1289, 2092, 2578, 4184, 5156, 10312, 21443, 42886, 52849, 85772, 105698, 171544, 211396, 422792, 674147, 1348294, 2696588, 5393176, 27640027, 55280054, 110560108, 221120216]

約数ペア:

[(1, 221120216), (2, 110560108), (4, 55280054), (8, 27640027), (41, 5393176), (82, 2696588), (164, 1348294), (328, 674147), (523, 422792), (1046, 211396), (1289, 171544), (2092, 105698), (2578, 85772), (4184, 52849), (5156, 42886), (10312, 21443)]