21200295

素因数分解:

$3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{73}}^1\times {\mathrm{1019}}^1$

素因数の和:1119

約数の個数: 32

約数和(自身を含む): 36230400

約数和(自身を除く): 15030105

約数列:

[1, 3, 5, 15, 19, 57, 73, 95, 219, 285, 365, 1019, 1095, 1387, 3057, 4161, 5095, 6935, 15285, 19361, 20805, 58083, 74387, 96805, 223161, 290415, 371935, 1115805, 1413353, 4240059, 7066765, 21200295]

約数ペア:

[(1, 21200295), (3, 7066765), (5, 4240059), (15, 1413353), (19, 1115805), (57, 371935), (73, 290415), (95, 223161), (219, 96805), (285, 74387), (365, 58083), (1019, 20805), (1095, 19361), (1387, 15285), (3057, 6935), (4161, 5095)]