2021030585

素因数分解:

$5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{109}}^1\times {\mathrm{743}}^1$

素因数の和:918

約数の個数: 64

約数和(自身を含む): 3016949760

約数和(自身を除く): 995919175

約数列:

[1, 5, 7, 23, 31, 35, 109, 115, 155, 161, 217, 545, 713, 743, 763, 805, 1085, 2507, 3379, 3565, 3715, 3815, 4991, 5201, 12535, 16895, 17089, 17549, 23033, 23653, 24955, 26005, 77717, 80987, 85445, 87745, 115165, 118265, 119623, 161231, 388585, 404935, 529759, 544019, 566909, 598115, 806155, 1862701, 2510597, 2648795, 2720095, 2834545, 3708313, 9313505, 12552985, 13038907, 17574179, 18541565, 57743731, 65194535, 87870895, 288718655, 404206117, 2021030585]

約数ペア:

[(1, 2021030585), (5, 404206117), (7, 288718655), (23, 87870895), (31, 65194535), (35, 57743731), (109, 18541565), (115, 17574179), (155, 13038907), (161, 12552985), (217, 9313505), (545, 3708313), (713, 2834545), (743, 2720095), (763, 2648795), (805, 2510597), (1085, 1862701), (2507, 806155), (3379, 598115), (3565, 566909), (3715, 544019), (3815, 529759), (4991, 404935), (5201, 388585), (12535, 161231), (16895, 119623), (17089, 118265), (17549, 115165), (23033, 87745), (23653, 85445), (24955, 80987), (26005, 77717)]