21448168

素因数分解:

$2^3\times 7^1\times {\mathrm{29}}^1\times {\mathrm{47}}^1\times {\mathrm{281}}^1$

素因数の和:370

約数の個数: 64

約数和(自身を含む): 48729600

約数和(自身を除く): 27281432

約数列:

[1, 2, 4, 7, 8, 14, 28, 29, 47, 56, 58, 94, 116, 188, 203, 232, 281, 329, 376, 406, 562, 658, 812, 1124, 1316, 1363, 1624, 1967, 2248, 2632, 2726, 3934, 5452, 7868, 8149, 9541, 10904, 13207, 15736, 16298, 19082, 26414, 32596, 38164, 52828, 57043, 65192, 76328, 92449, 105656, 114086, 184898, 228172, 369796, 383003, 456344, 739592, 766006, 1532012, 2681021, 3064024, 5362042, 10724084, 21448168]

約数ペア:

[(1, 21448168), (2, 10724084), (4, 5362042), (7, 3064024), (8, 2681021), (14, 1532012), (28, 766006), (29, 739592), (47, 456344), (56, 383003), (58, 369796), (94, 228172), (116, 184898), (188, 114086), (203, 105656), (232, 92449), (281, 76328), (329, 65192), (376, 57043), (406, 52828), (562, 38164), (658, 32596), (812, 26414), (1124, 19082), (1316, 16298), (1363, 15736), (1624, 13207), (1967, 10904), (2248, 9541), (2632, 8149), (2726, 7868), (3934, 5452)]