21183714

素因数分解:

$2^1\times 3^3\times {\mathrm{59}}^1\times {\mathrm{61}}^1\times {\mathrm{109}}^1$

素因数の和:240

約数の個数: 64

約数和(自身を含む): 49104000

約数和(自身を除く): 27920286

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 59, 61, 109, 118, 122, 177, 183, 218, 327, 354, 366, 531, 549, 654, 981, 1062, 1098, 1593, 1647, 1962, 2943, 3186, 3294, 3599, 5886, 6431, 6649, 7198, 10797, 12862, 13298, 19293, 19947, 21594, 32391, 38586, 39894, 57879, 59841, 64782, 97173, 115758, 119682, 173637, 179523, 194346, 347274, 359046, 392291, 784582, 1176873, 2353746, 3530619, 7061238, 10591857, 21183714]

約数ペア:

[(1, 21183714), (2, 10591857), (3, 7061238), (6, 3530619), (9, 2353746), (18, 1176873), (27, 784582), (54, 392291), (59, 359046), (61, 347274), (109, 194346), (118, 179523), (122, 173637), (177, 119682), (183, 115758), (218, 97173), (327, 64782), (354, 59841), (366, 57879), (531, 39894), (549, 38586), (654, 32391), (981, 21594), (1062, 19947), (1098, 19293), (1593, 13298), (1647, 12862), (1962, 10797), (2943, 7198), (3186, 6649), (3294, 6431), (3599, 5886)]