20405792169

素因数分解:

$3^2\times 7^1\times {\mathrm{571}}^1\times {\mathrm{599}}^1\times {\mathrm{947}}^1$

素因数の和:2130

約数の個数: 48

約数和(自身を含む): 33836774400

約数和(自身を除く): 13430982231

約数列:

[1, 3, 7, 9, 21, 63, 571, 599, 947, 1713, 1797, 2841, 3997, 4193, 5139, 5391, 6629, 8523, 11991, 12579, 19887, 35973, 37737, 59661, 342029, 540737, 567253, 1026087, 1622211, 1701759, 2394203, 3078261, 3785159, 3970771, 4866633, 5105277, 7182609, 11355477, 11912313, 21547827, 34066431, 35736939, 323901463, 971704389, 2267310241, 2915113167, 6801930723, 20405792169]

約数ペア:

[(1, 20405792169), (3, 6801930723), (7, 2915113167), (9, 2267310241), (21, 971704389), (63, 323901463), (571, 35736939), (599, 34066431), (947, 21547827), (1713, 11912313), (1797, 11355477), (2841, 7182609), (3997, 5105277), (4193, 4866633), (5139, 3970771), (5391, 3785159), (6629, 3078261), (8523, 2394203), (11991, 1701759), (12579, 1622211), (19887, 1026087), (35973, 567253), (37737, 540737), (59661, 342029)]