28582389

素因数分解:

$3^5\times {\mathrm{11}}^1\times {\mathrm{17}}^2\times {\mathrm{37}}^1$

素因数の和:97

約数の個数: 72

約数和(自身を含む): 50957088

約数和(自身を除く): 22374699

約数列:

[1, 3, 9, 11, 17, 27, 33, 37, 51, 81, 99, 111, 153, 187, 243, 289, 297, 333, 407, 459, 561, 629, 867, 891, 999, 1221, 1377, 1683, 1887, 2601, 2673, 2997, 3179, 3663, 4131, 5049, 5661, 6919, 7803, 8991, 9537, 10693, 10989, 15147, 16983, 20757, 23409, 28611, 32079, 32967, 45441, 50949, 62271, 70227, 85833, 96237, 98901, 117623, 152847, 186813, 257499, 288711, 352869, 560439, 772497, 866133, 1058607, 1681317, 2598399, 3175821, 9527463, 28582389]

約数ペア:

[(1, 28582389), (3, 9527463), (9, 3175821), (11, 2598399), (17, 1681317), (27, 1058607), (33, 866133), (37, 772497), (51, 560439), (81, 352869), (99, 288711), (111, 257499), (153, 186813), (187, 152847), (243, 117623), (289, 98901), (297, 96237), (333, 85833), (407, 70227), (459, 62271), (561, 50949), (629, 45441), (867, 32967), (891, 32079), (999, 28611), (1221, 23409), (1377, 20757), (1683, 16983), (1887, 15147), (2601, 10989), (2673, 10693), (2997, 9537), (3179, 8991), (3663, 7803), (4131, 6919), (5049, 5661)]