28003626

素因数分解:

$2^1\times 3^2\times 7^1\times {\mathrm{109}}^1\times {\mathrm{2039}}^1$

素因数の和:2163

約数の個数: 48

約数和(自身を含む): 70012800

約数和(自身を除く): 42009174

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 42, 63, 109, 126, 218, 327, 654, 763, 981, 1526, 1962, 2039, 2289, 4078, 4578, 6117, 6867, 12234, 13734, 14273, 18351, 28546, 36702, 42819, 85638, 128457, 222251, 256914, 444502, 666753, 1333506, 1555757, 2000259, 3111514, 4000518, 4667271, 9334542, 14001813, 28003626]

約数ペア:

[(1, 28003626), (2, 14001813), (3, 9334542), (6, 4667271), (7, 4000518), (9, 3111514), (14, 2000259), (18, 1555757), (21, 1333506), (42, 666753), (63, 444502), (109, 256914), (126, 222251), (218, 128457), (327, 85638), (654, 42819), (763, 36702), (981, 28546), (1526, 18351), (1962, 14273), (2039, 13734), (2289, 12234), (4078, 6867), (4578, 6117)]