20093355

素因数分解:

$3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{331}}^1$

素因数の和:432

約数の個数: 48

約数和(自身を含む): 37290240

約数和(自身を除く): 17196885

約数列:

[1, 3, 5, 9, 15, 19, 45, 57, 71, 95, 171, 213, 285, 331, 355, 639, 855, 993, 1065, 1349, 1655, 2979, 3195, 4047, 4965, 6289, 6745, 12141, 14895, 18867, 20235, 23501, 31445, 56601, 60705, 70503, 94335, 117505, 211509, 283005, 352515, 446519, 1057545, 1339557, 2232595, 4018671, 6697785, 20093355]

約数ペア:

[(1, 20093355), (3, 6697785), (5, 4018671), (9, 2232595), (15, 1339557), (19, 1057545), (45, 446519), (57, 352515), (71, 283005), (95, 211509), (171, 117505), (213, 94335), (285, 70503), (331, 60705), (355, 56601), (639, 31445), (855, 23501), (993, 20235), (1065, 18867), (1349, 14895), (1655, 12141), (2979, 6745), (3195, 6289), (4047, 4965)]