199972647

素因数分解:

$3^2\times 7^1\times {\mathrm{83}}^1\times {\mathrm{167}}^1\times {\mathrm{229}}^1$

素因数の和:492

約数の個数: 48

約数和(自身を含む): 337559040

約数和(自身を除く): 137586393

約数列:

[1, 3, 7, 9, 21, 63, 83, 167, 229, 249, 501, 581, 687, 747, 1169, 1503, 1603, 1743, 2061, 3507, 4809, 5229, 10521, 13861, 14427, 19007, 38243, 41583, 57021, 97027, 114729, 124749, 133049, 171063, 267701, 291081, 344187, 399147, 803103, 873243, 1197441, 2409309, 3174169, 9522507, 22219183, 28567521, 66657549, 199972647]

約数ペア:

[(1, 199972647), (3, 66657549), (7, 28567521), (9, 22219183), (21, 9522507), (63, 3174169), (83, 2409309), (167, 1197441), (229, 873243), (249, 803103), (501, 399147), (581, 344187), (687, 291081), (747, 267701), (1169, 171063), (1503, 133049), (1603, 124749), (1743, 114729), (2061, 97027), (3507, 57021), (4809, 41583), (5229, 38243), (10521, 19007), (13861, 14427)]