20407212

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{47}}^1\times {\mathrm{1723}}^1$

素因数の和:1787

約数の個数: 72

約数和(自身を含む): 60243456

約数和(自身を除く): 39836244

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 36, 42, 47, 63, 84, 94, 126, 141, 188, 252, 282, 329, 423, 564, 658, 846, 987, 1316, 1692, 1723, 1974, 2961, 3446, 3948, 5169, 5922, 6892, 10338, 11844, 12061, 15507, 20676, 24122, 31014, 36183, 48244, 62028, 72366, 80981, 108549, 144732, 161962, 217098, 242943, 323924, 434196, 485886, 566867, 728829, 971772, 1133734, 1457658, 1700601, 2267468, 2915316, 3401202, 5101803, 6802404, 10203606, 20407212]

約数ペア:

[(1, 20407212), (2, 10203606), (3, 6802404), (4, 5101803), (6, 3401202), (7, 2915316), (9, 2267468), (12, 1700601), (14, 1457658), (18, 1133734), (21, 971772), (28, 728829), (36, 566867), (42, 485886), (47, 434196), (63, 323924), (84, 242943), (94, 217098), (126, 161962), (141, 144732), (188, 108549), (252, 80981), (282, 72366), (329, 62028), (423, 48244), (564, 36183), (658, 31014), (846, 24122), (987, 20676), (1316, 15507), (1692, 12061), (1723, 11844), (1974, 10338), (2961, 6892), (3446, 5922), (3948, 5169)]