21099498

素因数分解:

$2^1\times 3^1\times 7^2\times {\mathrm{43}}^1\times {\mathrm{1669}}^1$

素因数の和:1731

約数の個数: 48

約数和(自身を含む): 50260320

約数和(自身を除く): 29160822

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 43, 49, 86, 98, 129, 147, 258, 294, 301, 602, 903, 1669, 1806, 2107, 3338, 4214, 5007, 6321, 10014, 11683, 12642, 23366, 35049, 70098, 71767, 81781, 143534, 163562, 215301, 245343, 430602, 490686, 502369, 1004738, 1507107, 3014214, 3516583, 7033166, 10549749, 21099498]

約数ペア:

[(1, 21099498), (2, 10549749), (3, 7033166), (6, 3516583), (7, 3014214), (14, 1507107), (21, 1004738), (42, 502369), (43, 490686), (49, 430602), (86, 245343), (98, 215301), (129, 163562), (147, 143534), (258, 81781), (294, 71767), (301, 70098), (602, 35049), (903, 23366), (1669, 12642), (1806, 11683), (2107, 10014), (3338, 6321), (4214, 5007)]