21870390

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{601}}^1\times {\mathrm{1213}}^1$

素因数の和:1824

約数の個数: 32

約数和(自身を含む): 52619616

約数和(自身を除く): 30749226

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 601, 1202, 1213, 1803, 2426, 3005, 3606, 3639, 6010, 6065, 7278, 9015, 12130, 18030, 18195, 36390, 729013, 1458026, 2187039, 3645065, 4374078, 7290130, 10935195, 21870390]

約数ペア:

[(1, 21870390), (2, 10935195), (3, 7290130), (5, 4374078), (6, 3645065), (10, 2187039), (15, 1458026), (30, 729013), (601, 36390), (1202, 18195), (1213, 18030), (1803, 12130), (2426, 9015), (3005, 7278), (3606, 6065), (3639, 6010)]