21948920

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{1823}}^1$

素因数の和:1884

約数の個数: 64

約数和(自身を含む): 57784320

約数和(自身を除く): 35835400

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 43, 56, 70, 86, 140, 172, 215, 280, 301, 344, 430, 602, 860, 1204, 1505, 1720, 1823, 2408, 3010, 3646, 6020, 7292, 9115, 12040, 12761, 14584, 18230, 25522, 36460, 51044, 63805, 72920, 78389, 102088, 127610, 156778, 255220, 313556, 391945, 510440, 548723, 627112, 783890, 1097446, 1567780, 2194892, 2743615, 3135560, 4389784, 5487230, 10974460, 21948920]

約数ペア:

[(1, 21948920), (2, 10974460), (4, 5487230), (5, 4389784), (7, 3135560), (8, 2743615), (10, 2194892), (14, 1567780), (20, 1097446), (28, 783890), (35, 627112), (40, 548723), (43, 510440), (56, 391945), (70, 313556), (86, 255220), (140, 156778), (172, 127610), (215, 102088), (280, 78389), (301, 72920), (344, 63805), (430, 51044), (602, 36460), (860, 25522), (1204, 18230), (1505, 14584), (1720, 12761), (1823, 12040), (2408, 9115), (3010, 7292), (3646, 6020)]