21280158

素因数分解:

$2^1\times 3^4\times {\mathrm{17}}^1\times {\mathrm{7727}}^1$

素因数の和:7758

約数の個数: 40

約数和(自身を含む): 50494752

約数和(自身を除く): 29214594

約数列:

[1, 2, 3, 6, 9, 17, 18, 27, 34, 51, 54, 81, 102, 153, 162, 306, 459, 918, 1377, 2754, 7727, 15454, 23181, 46362, 69543, 131359, 139086, 208629, 262718, 394077, 417258, 625887, 788154, 1182231, 1251774, 2364462, 3546693, 7093386, 10640079, 21280158]

約数ペア:

[(1, 21280158), (2, 10640079), (3, 7093386), (6, 3546693), (9, 2364462), (17, 1251774), (18, 1182231), (27, 788154), (34, 625887), (51, 417258), (54, 394077), (81, 262718), (102, 208629), (153, 139086), (162, 131359), (306, 69543), (459, 46362), (918, 23181), (1377, 15454), (2754, 7727)]