72371817

素因数分解:

$3^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{103}}^1\times {\mathrm{587}}^1$

素因数の和:722

約数の個数: 48

約数和(自身を含む): 127196160

約数和(自身を除く): 54824343

約数列:

[1, 3, 7, 9, 19, 21, 57, 63, 103, 133, 171, 309, 399, 587, 721, 927, 1197, 1761, 1957, 2163, 4109, 5283, 5871, 6489, 11153, 12327, 13699, 17613, 33459, 36981, 41097, 60461, 78071, 100377, 123291, 181383, 234213, 423227, 544149, 702639, 1148759, 1269681, 3446277, 3809043, 8041313, 10338831, 24123939, 72371817]

約数ペア:

[(1, 72371817), (3, 24123939), (7, 10338831), (9, 8041313), (19, 3809043), (21, 3446277), (57, 1269681), (63, 1148759), (103, 702639), (133, 544149), (171, 423227), (309, 234213), (399, 181383), (587, 123291), (721, 100377), (927, 78071), (1197, 60461), (1761, 41097), (1957, 36981), (2163, 33459), (4109, 17613), (5283, 13699), (5871, 12327), (6489, 11153)]