31681419

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{67}}^1\times {\mathrm{89}}^1$

素因数の和:200

約数の個数: 64

約数和(自身を含む): 56401920

約数和(自身を除く): 24720501

約数列:

[1, 3, 7, 11, 21, 23, 33, 67, 69, 77, 89, 161, 201, 231, 253, 267, 469, 483, 623, 737, 759, 979, 1407, 1541, 1771, 1869, 2047, 2211, 2937, 4623, 5159, 5313, 5963, 6141, 6853, 10787, 14329, 15477, 16951, 17889, 20559, 22517, 32361, 41741, 42987, 50853, 65593, 67551, 118657, 125223, 137149, 157619, 196779, 355971, 411447, 459151, 472857, 960043, 1377453, 1508639, 2880129, 4525917, 10560473, 31681419]

約数ペア:

[(1, 31681419), (3, 10560473), (7, 4525917), (11, 2880129), (21, 1508639), (23, 1377453), (33, 960043), (67, 472857), (69, 459151), (77, 411447), (89, 355971), (161, 196779), (201, 157619), (231, 137149), (253, 125223), (267, 118657), (469, 67551), (483, 65593), (623, 50853), (737, 42987), (759, 41741), (979, 32361), (1407, 22517), (1541, 20559), (1771, 17889), (1869, 16951), (2047, 15477), (2211, 14329), (2937, 10787), (4623, 6853), (5159, 6141), (5313, 5963)]