21088336

素因数分解:

$2^4\times {\mathrm{29}}^1\times {\mathrm{47}}^1\times {\mathrm{967}}^1$

素因数の和:1051

約数の個数: 40

約数和(自身を含む): 43211520

約数和(自身を除く): 22123184

約数列:

[1, 2, 4, 8, 16, 29, 47, 58, 94, 116, 188, 232, 376, 464, 752, 967, 1363, 1934, 2726, 3868, 5452, 7736, 10904, 15472, 21808, 28043, 45449, 56086, 90898, 112172, 181796, 224344, 363592, 448688, 727184, 1318021, 2636042, 5272084, 10544168, 21088336]

約数ペア:

[(1, 21088336), (2, 10544168), (4, 5272084), (8, 2636042), (16, 1318021), (29, 727184), (47, 448688), (58, 363592), (94, 224344), (116, 181796), (188, 112172), (232, 90898), (376, 56086), (464, 45449), (752, 28043), (967, 21808), (1363, 15472), (1934, 10904), (2726, 7736), (3868, 5452)]