21855390

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{101}}^1\times {\mathrm{7213}}^1$

素因数の和:7324

約数の個数: 32

約数和(自身を含む): 52979616

約数和(自身を除く): 31124226

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 101, 202, 303, 505, 606, 1010, 1515, 3030, 7213, 14426, 21639, 36065, 43278, 72130, 108195, 216390, 728513, 1457026, 2185539, 3642565, 4371078, 7285130, 10927695, 21855390]

約数ペア:

[(1, 21855390), (2, 10927695), (3, 7285130), (5, 4371078), (6, 3642565), (10, 2185539), (15, 1457026), (30, 728513), (101, 216390), (202, 108195), (303, 72130), (505, 43278), (606, 36065), (1010, 21639), (1515, 14426), (3030, 7213)]