20730045

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{10391}}^1$

素因数の和:10425

約数の個数: 32

約数和(自身を含む): 39905280

約数和(自身を除く): 19175235

約数列:

[1, 3, 5, 7, 15, 19, 21, 35, 57, 95, 105, 133, 285, 399, 665, 1995, 10391, 31173, 51955, 72737, 155865, 197429, 218211, 363685, 592287, 987145, 1091055, 1382003, 2961435, 4146009, 6910015, 20730045]

約数ペア:

[(1, 20730045), (3, 6910015), (5, 4146009), (7, 2961435), (15, 1382003), (19, 1091055), (21, 987145), (35, 592287), (57, 363685), (95, 218211), (105, 197429), (133, 155865), (285, 72737), (399, 51955), (665, 31173), (1995, 10391)]