21361248

素因数分解:

$2^5\times 3^2\times {\mathrm{17}}^1\times {\mathrm{4363}}^1$

素因数の和:4396

約数の個数: 72

約数和(自身を含む): 64334088

約数和(自身を除く): 42972840

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 17, 18, 24, 32, 34, 36, 48, 51, 68, 72, 96, 102, 136, 144, 153, 204, 272, 288, 306, 408, 544, 612, 816, 1224, 1632, 2448, 4363, 4896, 8726, 13089, 17452, 26178, 34904, 39267, 52356, 69808, 74171, 78534, 104712, 139616, 148342, 157068, 209424, 222513, 296684, 314136, 418848, 445026, 593368, 628272, 667539, 890052, 1186736, 1256544, 1335078, 1780104, 2373472, 2670156, 3560208, 5340312, 7120416, 10680624, 21361248]

約数ペア:

[(1, 21361248), (2, 10680624), (3, 7120416), (4, 5340312), (6, 3560208), (8, 2670156), (9, 2373472), (12, 1780104), (16, 1335078), (17, 1256544), (18, 1186736), (24, 890052), (32, 667539), (34, 628272), (36, 593368), (48, 445026), (51, 418848), (68, 314136), (72, 296684), (96, 222513), (102, 209424), (136, 157068), (144, 148342), (153, 139616), (204, 104712), (272, 78534), (288, 74171), (306, 69808), (408, 52356), (544, 39267), (612, 34904), (816, 26178), (1224, 17452), (1632, 13089), (2448, 8726), (4363, 4896)]