19429725

素因数分解:

$3^1\times 5^2\times 7^2\times {\mathrm{17}}^1\times {\mathrm{311}}^1$

素因数の和:355

約数の個数: 72

約数和(自身を含む): 39693888

約数和(自身を除く): 20264163

約数列:

[1, 3, 5, 7, 15, 17, 21, 25, 35, 49, 51, 75, 85, 105, 119, 147, 175, 245, 255, 311, 357, 425, 525, 595, 735, 833, 933, 1225, 1275, 1555, 1785, 2177, 2499, 2975, 3675, 4165, 4665, 5287, 6531, 7775, 8925, 10885, 12495, 15239, 15861, 20825, 23325, 26435, 32655, 37009, 45717, 54425, 62475, 76195, 79305, 111027, 132175, 163275, 185045, 228585, 259063, 380975, 396525, 555135, 777189, 925225, 1142925, 1295315, 2775675, 3885945, 6476575, 19429725]

約数ペア:

[(1, 19429725), (3, 6476575), (5, 3885945), (7, 2775675), (15, 1295315), (17, 1142925), (21, 925225), (25, 777189), (35, 555135), (49, 396525), (51, 380975), (75, 259063), (85, 228585), (105, 185045), (119, 163275), (147, 132175), (175, 111027), (245, 79305), (255, 76195), (311, 62475), (357, 54425), (425, 45717), (525, 37009), (595, 32655), (735, 26435), (833, 23325), (933, 20825), (1225, 15861), (1275, 15239), (1555, 12495), (1785, 10885), (2177, 8925), (2499, 7775), (2975, 6531), (3675, 5287), (4165, 4665)]