18952515

素因数分解:

$3^3\times 5^1\times {\mathrm{29}}^1\times {\mathrm{47}}^1\times {\mathrm{103}}^1$

素因数の和:193

約数の個数: 64

約数和(自身を含む): 35942400

約数和(自身を除く): 16989885

約数列:

[1, 3, 5, 9, 15, 27, 29, 45, 47, 87, 103, 135, 141, 145, 235, 261, 309, 423, 435, 515, 705, 783, 927, 1269, 1305, 1363, 1545, 2115, 2781, 2987, 3915, 4089, 4635, 4841, 6345, 6815, 8961, 12267, 13905, 14523, 14935, 20445, 24205, 26883, 36801, 43569, 44805, 61335, 72615, 80649, 130707, 134415, 140389, 184005, 217845, 403245, 421167, 653535, 701945, 1263501, 2105835, 3790503, 6317505, 18952515]

約数ペア:

[(1, 18952515), (3, 6317505), (5, 3790503), (9, 2105835), (15, 1263501), (27, 701945), (29, 653535), (45, 421167), (47, 403245), (87, 217845), (103, 184005), (135, 140389), (141, 134415), (145, 130707), (235, 80649), (261, 72615), (309, 61335), (423, 44805), (435, 43569), (515, 36801), (705, 26883), (783, 24205), (927, 20445), (1269, 14935), (1305, 14523), (1363, 13905), (1545, 12267), (2115, 8961), (2781, 6815), (2987, 6345), (3915, 4841), (4089, 4635)]