205344153

素因数分解:

$3^4\times 7^3\times {\mathrm{19}}^1\times {\mathrm{389}}^1$

素因数の和:441

約数の個数: 80

約数和(自身を含む): 377520000

約数和(自身を除く): 172175847

約数列:

[1, 3, 7, 9, 19, 21, 27, 49, 57, 63, 81, 133, 147, 171, 189, 343, 389, 399, 441, 513, 567, 931, 1029, 1167, 1197, 1323, 1539, 2723, 2793, 3087, 3501, 3591, 3969, 6517, 7391, 8169, 8379, 9261, 10503, 10773, 19061, 19551, 22173, 24507, 25137, 27783, 31509, 51737, 57183, 58653, 66519, 73521, 75411, 133427, 155211, 171549, 175959, 199557, 220563, 362159, 400281, 465633, 514647, 527877, 598671, 1086477, 1200843, 1396899, 1543941, 2535113, 3259431, 3602529, 4190697, 7605339, 9778293, 10807587, 22816017, 29334879, 68448051, 205344153]

約数ペア:

[(1, 205344153), (3, 68448051), (7, 29334879), (9, 22816017), (19, 10807587), (21, 9778293), (27, 7605339), (49, 4190697), (57, 3602529), (63, 3259431), (81, 2535113), (133, 1543941), (147, 1396899), (171, 1200843), (189, 1086477), (343, 598671), (389, 527877), (399, 514647), (441, 465633), (513, 400281), (567, 362159), (931, 220563), (1029, 199557), (1167, 175959), (1197, 171549), (1323, 155211), (1539, 133427), (2723, 75411), (2793, 73521), (3087, 66519), (3501, 58653), (3591, 57183), (3969, 51737), (6517, 31509), (7391, 27783), (8169, 25137), (8379, 24507), (9261, 22173), (10503, 19551), (10773, 19061)]