81918486

素因数分解:

$2^1\times 3^3\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{1913}}^1$

素因数の和:1998

約数の個数: 64

約数和(自身を含む): 199362240

約数和(自身を除く): 117443754

約数列:

[1, 2, 3, 6, 9, 13, 18, 26, 27, 39, 54, 61, 78, 117, 122, 183, 234, 351, 366, 549, 702, 793, 1098, 1586, 1647, 1913, 2379, 3294, 3826, 4758, 5739, 7137, 11478, 14274, 17217, 21411, 24869, 34434, 42822, 49738, 51651, 74607, 103302, 116693, 149214, 223821, 233386, 350079, 447642, 671463, 700158, 1050237, 1342926, 1517009, 2100474, 3034018, 3150711, 4551027, 6301422, 9102054, 13653081, 27306162, 40959243, 81918486]

約数ペア:

[(1, 81918486), (2, 40959243), (3, 27306162), (6, 13653081), (9, 9102054), (13, 6301422), (18, 4551027), (26, 3150711), (27, 3034018), (39, 2100474), (54, 1517009), (61, 1342926), (78, 1050237), (117, 700158), (122, 671463), (183, 447642), (234, 350079), (351, 233386), (366, 223821), (549, 149214), (702, 116693), (793, 103302), (1098, 74607), (1586, 51651), (1647, 49738), (1913, 42822), (2379, 34434), (3294, 24869), (3826, 21411), (4758, 17217), (5739, 14274), (7137, 11478)]