405998973

素因数分解:

$3^4\times {\mathrm{19}}^1\times {\mathrm{331}}^1\times {\mathrm{797}}^1$

素因数の和:1159

約数の個数: 40

約数和(自身を含む): 641145120

約数和(自身を除く): 235146147

約数列:

[1, 3, 9, 19, 27, 57, 81, 171, 331, 513, 797, 993, 1539, 2391, 2979, 6289, 7173, 8937, 15143, 18867, 21519, 26811, 45429, 56601, 64557, 136287, 169803, 263807, 408861, 509409, 791421, 1226583, 2374263, 5012333, 7122789, 15036999, 21368367, 45110997, 135332991, 405998973]

約数ペア:

[(1, 405998973), (3, 135332991), (9, 45110997), (19, 21368367), (27, 15036999), (57, 7122789), (81, 5012333), (171, 2374263), (331, 1226583), (513, 791421), (797, 509409), (993, 408861), (1539, 263807), (2391, 169803), (2979, 136287), (6289, 64557), (7173, 56601), (8937, 45429), (15143, 26811), (18867, 21519)]