664388973

素因数分解:

$3^5\times {\mathrm{53}}^1\times {\mathrm{79}}^1\times {\mathrm{653}}^1$

素因数の和:800

約数の個数: 48

約数和(自身を含む): 1028401920

約数和(自身を除く): 364012947

約数列:

[1, 3, 9, 27, 53, 79, 81, 159, 237, 243, 477, 653, 711, 1431, 1959, 2133, 4187, 4293, 5877, 6399, 12561, 12879, 17631, 19197, 34609, 37683, 51587, 52893, 103827, 113049, 154761, 158679, 311481, 339147, 464283, 934443, 1017441, 1392849, 2734111, 2803329, 4178547, 8202333, 8409987, 12535641, 24606999, 73820997, 221462991, 664388973]

約数ペア:

[(1, 664388973), (3, 221462991), (9, 73820997), (27, 24606999), (53, 12535641), (79, 8409987), (81, 8202333), (159, 4178547), (237, 2803329), (243, 2734111), (477, 1392849), (653, 1017441), (711, 934443), (1431, 464283), (1959, 339147), (2133, 311481), (4187, 158679), (4293, 154761), (5877, 113049), (6399, 103827), (12561, 52893), (12879, 51587), (17631, 37683), (19197, 34609)]