21528030

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{103}}^1\times {\mathrm{6967}}^1$

素因数の和:7080

約数の個数: 32

約数和(自身を含む): 52176384

約数和(自身を除く): 30648354

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 103, 206, 309, 515, 618, 1030, 1545, 3090, 6967, 13934, 20901, 34835, 41802, 69670, 104505, 209010, 717601, 1435202, 2152803, 3588005, 4305606, 7176010, 10764015, 21528030]

約数ペア:

[(1, 21528030), (2, 10764015), (3, 7176010), (5, 4305606), (6, 3588005), (10, 2152803), (15, 1435202), (30, 717601), (103, 209010), (206, 104505), (309, 69670), (515, 41802), (618, 34835), (1030, 20901), (1545, 13934), (3090, 6967)]