31457673

素因数分解:

$3^3\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{53}}^1\times {\mathrm{89}}^1$

素因数の和:183

約数の個数: 64

約数和(自身を含む): 54432000

約数和(自身を除く): 22974327

約数列:

[1, 3, 9, 13, 19, 27, 39, 53, 57, 89, 117, 159, 171, 247, 267, 351, 477, 513, 689, 741, 801, 1007, 1157, 1431, 1691, 2067, 2223, 2403, 3021, 3471, 4717, 5073, 6201, 6669, 9063, 10413, 13091, 14151, 15219, 18603, 21983, 27189, 31239, 39273, 42453, 45657, 61321, 65949, 89623, 117819, 127359, 183963, 197847, 268869, 353457, 551889, 593541, 806607, 1165099, 1655667, 2419821, 3495297, 10485891, 31457673]

約数ペア:

[(1, 31457673), (3, 10485891), (9, 3495297), (13, 2419821), (19, 1655667), (27, 1165099), (39, 806607), (53, 593541), (57, 551889), (89, 353457), (117, 268869), (159, 197847), (171, 183963), (247, 127359), (267, 117819), (351, 89623), (477, 65949), (513, 61321), (689, 45657), (741, 42453), (801, 39273), (1007, 31239), (1157, 27189), (1431, 21983), (1691, 18603), (2067, 15219), (2223, 14151), (2403, 13091), (3021, 10413), (3471, 9063), (4717, 6669), (5073, 6201)]