27920409

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{157}}^1\times {\mathrm{317}}^1$

素因数の和:505

約数の個数: 32

約数和(自身を含む): 43410816

約数和(自身を除く): 15490407

約数列:

[1, 3, 11, 17, 33, 51, 157, 187, 317, 471, 561, 951, 1727, 2669, 3487, 5181, 5389, 8007, 10461, 16167, 29359, 49769, 59279, 88077, 149307, 177837, 547459, 846073, 1642377, 2538219, 9306803, 27920409]

約数ペア:

[(1, 27920409), (3, 9306803), (11, 2538219), (17, 1642377), (33, 846073), (51, 547459), (157, 177837), (187, 149307), (317, 88077), (471, 59279), (561, 49769), (951, 29359), (1727, 16167), (2669, 10461), (3487, 8007), (5181, 5389)]