21408036

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{109}}^1\times {\mathrm{1259}}^1$

素因数の和:1388

約数の個数: 48

約数和(自身を含む): 54331200

約数和(自身を除く): 32923164

約数列:

[1, 2, 3, 4, 6, 12, 13, 26, 39, 52, 78, 109, 156, 218, 327, 436, 654, 1259, 1308, 1417, 2518, 2834, 3777, 4251, 5036, 5668, 7554, 8502, 15108, 16367, 17004, 32734, 49101, 65468, 98202, 137231, 196404, 274462, 411693, 548924, 823386, 1646772, 1784003, 3568006, 5352009, 7136012, 10704018, 21408036]

約数ペア:

[(1, 21408036), (2, 10704018), (3, 7136012), (4, 5352009), (6, 3568006), (12, 1784003), (13, 1646772), (26, 823386), (39, 548924), (52, 411693), (78, 274462), (109, 196404), (156, 137231), (218, 98202), (327, 65468), (436, 49101), (654, 32734), (1259, 17004), (1308, 16367), (1417, 15108), (2518, 8502), (2834, 7554), (3777, 5668), (4251, 5036)]