128589741

素因数分解:

$3^3\times 7^1\times {\mathrm{29}}^2\times {\mathrm{809}}^1$

素因数の和:883

約数の個数: 48

約数和(自身を含む): 225763200

約数和(自身を除く): 97173459

約数列:

[1, 3, 7, 9, 21, 27, 29, 63, 87, 189, 203, 261, 609, 783, 809, 841, 1827, 2427, 2523, 5481, 5663, 5887, 7281, 7569, 16989, 17661, 21843, 22707, 23461, 50967, 52983, 70383, 152901, 158949, 164227, 211149, 492681, 633447, 680369, 1478043, 2041107, 4434129, 4762583, 6123321, 14287749, 18369963, 42863247, 128589741]

約数ペア:

[(1, 128589741), (3, 42863247), (7, 18369963), (9, 14287749), (21, 6123321), (27, 4762583), (29, 4434129), (63, 2041107), (87, 1478043), (189, 680369), (203, 633447), (261, 492681), (609, 211149), (783, 164227), (809, 158949), (841, 152901), (1827, 70383), (2427, 52983), (2523, 50967), (5481, 23461), (5663, 22707), (5887, 21843), (7281, 17661), (7569, 16989)]