28207942749

素因数分解:

$3^2\times 7^2\times {\mathrm{29}}^1\times {\mathrm{467}}^1\times {\mathrm{4723}}^1$

素因数の和:5239

約数の個数: 72

約数和(自身を含む): 49146795360

約数和(自身を除く): 20938852611

約数列:

[1, 3, 7, 9, 21, 29, 49, 63, 87, 147, 203, 261, 441, 467, 609, 1401, 1421, 1827, 3269, 4203, 4263, 4723, 9807, 12789, 13543, 14169, 22883, 29421, 33061, 40629, 42507, 68649, 94801, 99183, 121887, 136967, 205947, 231427, 284403, 297549, 410901, 663607, 694281, 853209, 958769, 1232703, 1990821, 2082843, 2205641, 2876307, 5972463, 6616923, 6711383, 8628921, 15439487, 19850769, 20134149, 46318461, 60402447, 63963589, 108076409, 138955383, 191890767, 324229227, 447745123, 575672301, 972687681, 1343235369, 3134215861, 4029706107, 9402647583, 28207942749]

約数ペア:

[(1, 28207942749), (3, 9402647583), (7, 4029706107), (9, 3134215861), (21, 1343235369), (29, 972687681), (49, 575672301), (63, 447745123), (87, 324229227), (147, 191890767), (203, 138955383), (261, 108076409), (441, 63963589), (467, 60402447), (609, 46318461), (1401, 20134149), (1421, 19850769), (1827, 15439487), (3269, 8628921), (4203, 6711383), (4263, 6616923), (4723, 5972463), (9807, 2876307), (12789, 2205641), (13543, 2082843), (14169, 1990821), (22883, 1232703), (29421, 958769), (33061, 853209), (40629, 694281), (42507, 663607), (68649, 410901), (94801, 297549), (99183, 284403), (121887, 231427), (136967, 205947)]