19757199

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{31}}^2\times {\mathrm{89}}^1$

素因数の和:172

約数の個数: 48

約数和(自身を含む): 34318080

約数和(自身を除く): 14560881

約数列:

[1, 3, 7, 11, 21, 31, 33, 77, 89, 93, 217, 231, 267, 341, 623, 651, 961, 979, 1023, 1869, 2387, 2759, 2883, 2937, 6727, 6853, 7161, 8277, 10571, 19313, 20181, 20559, 30349, 31713, 57939, 73997, 85529, 91047, 212443, 221991, 256587, 598703, 637329, 940819, 1796109, 2822457, 6585733, 19757199]

約数ペア:

[(1, 19757199), (3, 6585733), (7, 2822457), (11, 1796109), (21, 940819), (31, 637329), (33, 598703), (77, 256587), (89, 221991), (93, 212443), (217, 91047), (231, 85529), (267, 73997), (341, 57939), (623, 31713), (651, 30349), (961, 20559), (979, 20181), (1023, 19313), (1869, 10571), (2387, 8277), (2759, 7161), (2883, 6853), (2937, 6727)]