197220645

素因数分解:

$3^2\times 5^1\times {\mathrm{211}}^1\times {\mathrm{20771}}^1$

素因数の和:20993

約数の個数: 24

約数和(自身を含む): 343485792

約数和(自身を除く): 146265147

約数列:

[1, 3, 5, 9, 15, 45, 211, 633, 1055, 1899, 3165, 9495, 20771, 62313, 103855, 186939, 311565, 934695, 4382681, 13148043, 21913405, 39444129, 65740215, 197220645]

約数ペア:

[(1, 197220645), (3, 65740215), (5, 39444129), (9, 21913405), (15, 13148043), (45, 4382681), (211, 934695), (633, 311565), (1055, 186939), (1899, 103855), (3165, 62313), (9495, 20771)]