19775736

素因数分解:

$2^3\times 3^2\times {\mathrm{349}}^1\times {\mathrm{787}}^1$

素因数の和:1148

約数の個数: 48

約数和(自身を含む): 53781000

約数和(自身を除く): 34005264

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36, 72, 349, 698, 787, 1047, 1396, 1574, 2094, 2361, 2792, 3141, 3148, 4188, 4722, 6282, 6296, 7083, 8376, 9444, 12564, 14166, 18888, 25128, 28332, 56664, 274663, 549326, 823989, 1098652, 1647978, 2197304, 2471967, 3295956, 4943934, 6591912, 9887868, 19775736]

約数ペア:

[(1, 19775736), (2, 9887868), (3, 6591912), (4, 4943934), (6, 3295956), (8, 2471967), (9, 2197304), (12, 1647978), (18, 1098652), (24, 823989), (36, 549326), (72, 274663), (349, 56664), (698, 28332), (787, 25128), (1047, 18888), (1396, 14166), (1574, 12564), (2094, 9444), (2361, 8376), (2792, 7083), (3141, 6296), (3148, 6282), (4188, 4722)]