21388552

素因数分解:

$2^3\times {\mathrm{41}}^1\times {\mathrm{61}}^1\times {\mathrm{1069}}^1$

素因数の和:1177

約数の個数: 32

約数和(自身を含む): 41794200

約数和(自身を除く): 20405648

約数列:

[1, 2, 4, 8, 41, 61, 82, 122, 164, 244, 328, 488, 1069, 2138, 2501, 4276, 5002, 8552, 10004, 20008, 43829, 65209, 87658, 130418, 175316, 260836, 350632, 521672, 2673569, 5347138, 10694276, 21388552]

約数ペア:

[(1, 21388552), (2, 10694276), (4, 5347138), (8, 2673569), (41, 521672), (61, 350632), (82, 260836), (122, 175316), (164, 130418), (244, 87658), (328, 65209), (488, 43829), (1069, 20008), (2138, 10004), (2501, 8552), (4276, 5002)]