213748325

素因数分解:

$5^2\times 7^1\times {\mathrm{79}}^1\times {\mathrm{15461}}^1$

素因数の和:15557

約数の個数: 24

約数和(自身を含む): 306766080

約数和(自身を除く): 93017755

約数列:

[1, 5, 7, 25, 35, 79, 175, 395, 553, 1975, 2765, 13825, 15461, 77305, 108227, 386525, 541135, 1221419, 2705675, 6107095, 8549933, 30535475, 42749665, 213748325]

約数ペア:

[(1, 213748325), (5, 42749665), (7, 30535475), (25, 8549933), (35, 6107095), (79, 2705675), (175, 1221419), (395, 541135), (553, 386525), (1975, 108227), (2765, 77305), (13825, 15461)]