9988839

素因数分解:

$3^4\times 7^1\times {\mathrm{79}}^1\times {\mathrm{223}}^1$

素因数の和:321

約数の個数: 40

約数和(自身を含む): 17346560

約数和(自身を除く): 7357721

約数列:

[1, 3, 7, 9, 21, 27, 63, 79, 81, 189, 223, 237, 553, 567, 669, 711, 1561, 1659, 2007, 2133, 4683, 4977, 6021, 6399, 14049, 14931, 17617, 18063, 42147, 44793, 52851, 123319, 126441, 158553, 369957, 475659, 1109871, 1426977, 3329613, 9988839]

約数ペア:

[(1, 9988839), (3, 3329613), (7, 1426977), (9, 1109871), (21, 475659), (27, 369957), (63, 158553), (79, 126441), (81, 123319), (189, 52851), (223, 44793), (237, 42147), (553, 18063), (567, 17617), (669, 14931), (711, 14049), (1561, 6399), (1659, 6021), (2007, 4977), (2133, 4683)]