21774770

素因数分解:

$2^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{79}}^1\times {\mathrm{641}}^1$

素因数の和:770

約数の個数: 32

約数和(自身を含む): 40677120

約数和(自身を除く): 18902350

約数列:

[1, 2, 5, 10, 43, 79, 86, 158, 215, 395, 430, 641, 790, 1282, 3205, 3397, 6410, 6794, 16985, 27563, 33970, 50639, 55126, 101278, 137815, 253195, 275630, 506390, 2177477, 4354954, 10887385, 21774770]

約数ペア:

[(1, 21774770), (2, 10887385), (5, 4354954), (10, 2177477), (43, 506390), (79, 275630), (86, 253195), (158, 137815), (215, 101278), (395, 55126), (430, 50639), (641, 33970), (790, 27563), (1282, 16985), (3205, 6794), (3397, 6410)]