21784335

素因数分解:

$3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{233}}^1\times {\mathrm{271}}^1$

素因数の和:535

約数の個数: 32

約数和(自身を含む): 36661248

約数和(自身を除く): 14876913

約数列:

[1, 3, 5, 15, 23, 69, 115, 233, 271, 345, 699, 813, 1165, 1355, 3495, 4065, 5359, 6233, 16077, 18699, 26795, 31165, 63143, 80385, 93495, 189429, 315715, 947145, 1452289, 4356867, 7261445, 21784335]

約数ペア:

[(1, 21784335), (3, 7261445), (5, 4356867), (15, 1452289), (23, 947145), (69, 315715), (115, 189429), (233, 93495), (271, 80385), (345, 63143), (699, 31165), (813, 26795), (1165, 18699), (1355, 16077), (3495, 6233), (4065, 5359)]