20716866

素因数分解:

$2^1\times 3^2\times {\mathrm{31}}^1\times {\mathrm{137}}^1\times {\mathrm{271}}^1$

素因数の和:447

約数の個数: 48

約数和(自身を含む): 46844928

約数和(自身を除く): 26128062

約数列:

[1, 2, 3, 6, 9, 18, 31, 62, 93, 137, 186, 271, 274, 279, 411, 542, 558, 813, 822, 1233, 1626, 2439, 2466, 4247, 4878, 8401, 8494, 12741, 16802, 25203, 25482, 37127, 38223, 50406, 74254, 75609, 76446, 111381, 151218, 222762, 334143, 668286, 1150937, 2301874, 3452811, 6905622, 10358433, 20716866]

約数ペア:

[(1, 20716866), (2, 10358433), (3, 6905622), (6, 3452811), (9, 2301874), (18, 1150937), (31, 668286), (62, 334143), (93, 222762), (137, 151218), (186, 111381), (271, 76446), (274, 75609), (279, 74254), (411, 50406), (542, 38223), (558, 37127), (813, 25482), (822, 25203), (1233, 16802), (1626, 12741), (2439, 8494), (2466, 8401), (4247, 4878)]