1997899722

素因数分解:

$2^1\times 3^3\times 7^1\times {\mathrm{13}}^1\times {\mathrm{406573}}^1$

素因数の和:406604

約数の個数: 64

約数和(自身を含む): 5464354560

約数和(自身を除く): 3466454838

約数列:

[1, 2, 3, 6, 7, 9, 13, 14, 18, 21, 26, 27, 39, 42, 54, 63, 78, 91, 117, 126, 182, 189, 234, 273, 351, 378, 546, 702, 819, 1638, 2457, 4914, 406573, 813146, 1219719, 2439438, 2846011, 3659157, 5285449, 5692022, 7318314, 8538033, 10570898, 10977471, 15856347, 17076066, 21954942, 25614099, 31712694, 36998143, 47569041, 51228198, 73996286, 76842297, 95138082, 110994429, 142707123, 153684594, 221988858, 285414246, 332983287, 665966574, 998949861, 1997899722]

約数ペア:

[(1, 1997899722), (2, 998949861), (3, 665966574), (6, 332983287), (7, 285414246), (9, 221988858), (13, 153684594), (14, 142707123), (18, 110994429), (21, 95138082), (26, 76842297), (27, 73996286), (39, 51228198), (42, 47569041), (54, 36998143), (63, 31712694), (78, 25614099), (91, 21954942), (117, 17076066), (126, 15856347), (182, 10977471), (189, 10570898), (234, 8538033), (273, 7318314), (351, 5692022), (378, 5285449), (546, 3659157), (702, 2846011), (819, 2439438), (1638, 1219719), (2457, 813146), (4914, 406573)]