21653984

素因数分解:

$2^5\times {\mathrm{11}}^1\times {\mathrm{227}}^1\times {\mathrm{271}}^1$

素因数の和:519

約数の個数: 48

約数和(自身を含む): 46884096

約数和(自身を除く): 25230112

約数列:

[1, 2, 4, 8, 11, 16, 22, 32, 44, 88, 176, 227, 271, 352, 454, 542, 908, 1084, 1816, 2168, 2497, 2981, 3632, 4336, 4994, 5962, 7264, 8672, 9988, 11924, 19976, 23848, 39952, 47696, 61517, 79904, 95392, 123034, 246068, 492136, 676687, 984272, 1353374, 1968544, 2706748, 5413496, 10826992, 21653984]

約数ペア:

[(1, 21653984), (2, 10826992), (4, 5413496), (8, 2706748), (11, 1968544), (16, 1353374), (22, 984272), (32, 676687), (44, 492136), (88, 246068), (176, 123034), (227, 95392), (271, 79904), (352, 61517), (454, 47696), (542, 39952), (908, 23848), (1084, 19976), (1816, 11924), (2168, 9988), (2497, 8672), (2981, 7264), (3632, 5962), (4336, 4994)]