397376469

素因数分解:

$3^3\times 7^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{2699}}^1$

素因数の和:2775

約数の個数: 64

約数和(自身を含む): 725760000

約数和(自身を除く): 328383531

約数列:

[1, 3, 7, 9, 19, 21, 27, 41, 57, 63, 123, 133, 171, 189, 287, 369, 399, 513, 779, 861, 1107, 1197, 2337, 2583, 2699, 3591, 5453, 7011, 7749, 8097, 16359, 18893, 21033, 24291, 49077, 51281, 56679, 72873, 110659, 147231, 153843, 170037, 331977, 358967, 461529, 510111, 774613, 995931, 1076901, 1384587, 2102521, 2323839, 2987793, 3230703, 6307563, 6971517, 9692109, 14717647, 18922689, 20914551, 44152941, 56768067, 132458823, 397376469]

約数ペア:

[(1, 397376469), (3, 132458823), (7, 56768067), (9, 44152941), (19, 20914551), (21, 18922689), (27, 14717647), (41, 9692109), (57, 6971517), (63, 6307563), (123, 3230703), (133, 2987793), (171, 2323839), (189, 2102521), (287, 1384587), (369, 1076901), (399, 995931), (513, 774613), (779, 510111), (861, 461529), (1107, 358967), (1197, 331977), (2337, 170037), (2583, 153843), (2699, 147231), (3591, 110659), (5453, 72873), (7011, 56679), (7749, 51281), (8097, 49077), (16359, 24291), (18893, 21033)]