81418743

素因数分解:

$3^3\times 7^2\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{79}}^1$

素因数の和:162

約数の個数: 96

約数和(自身を含む): 153216000

約数和(自身を除く): 71797257

約数列:

[1, 3, 7, 9, 19, 21, 27, 41, 49, 57, 63, 79, 123, 133, 147, 171, 189, 237, 287, 369, 399, 441, 513, 553, 711, 779, 861, 931, 1107, 1197, 1323, 1501, 1659, 2009, 2133, 2337, 2583, 2793, 3239, 3591, 3871, 4503, 4977, 5453, 6027, 7011, 7749, 8379, 9717, 10507, 11613, 13509, 14931, 16359, 18081, 21033, 22673, 25137, 29151, 31521, 34839, 38171, 40527, 49077, 54243, 61541, 68019, 73549, 87453, 94563, 104517, 114513, 147231, 158711, 184623, 204057, 220647, 283689, 343539, 430787, 476133, 553869, 612171, 661941, 1030617, 1292361, 1428399, 1661607, 1985823, 3015509, 3877083, 4285197, 9046527, 11631249, 27139581, 81418743]

約数ペア:

[(1, 81418743), (3, 27139581), (7, 11631249), (9, 9046527), (19, 4285197), (21, 3877083), (27, 3015509), (41, 1985823), (49, 1661607), (57, 1428399), (63, 1292361), (79, 1030617), (123, 661941), (133, 612171), (147, 553869), (171, 476133), (189, 430787), (237, 343539), (287, 283689), (369, 220647), (399, 204057), (441, 184623), (513, 158711), (553, 147231), (711, 114513), (779, 104517), (861, 94563), (931, 87453), (1107, 73549), (1197, 68019), (1323, 61541), (1501, 54243), (1659, 49077), (2009, 40527), (2133, 38171), (2337, 34839), (2583, 31521), (2793, 29151), (3239, 25137), (3591, 22673), (3871, 21033), (4503, 18081), (4977, 16359), (5453, 14931), (6027, 13509), (7011, 11613), (7749, 10507), (8379, 9717)]