21027650

素因数分解:

$2^1\times 5^2\times 7^1\times {\mathrm{73}}^1\times {\mathrm{823}}^1$

素因数の和:915

約数の個数: 48

約数和(自身を含む): 45366144

約数和(自身を除く): 24338494

約数列:

[1, 2, 5, 7, 10, 14, 25, 35, 50, 70, 73, 146, 175, 350, 365, 511, 730, 823, 1022, 1646, 1825, 2555, 3650, 4115, 5110, 5761, 8230, 11522, 12775, 20575, 25550, 28805, 41150, 57610, 60079, 120158, 144025, 288050, 300395, 420553, 600790, 841106, 1501975, 2102765, 3003950, 4205530, 10513825, 21027650]

約数ペア:

[(1, 21027650), (2, 10513825), (5, 4205530), (7, 3003950), (10, 2102765), (14, 1501975), (25, 841106), (35, 600790), (50, 420553), (70, 300395), (73, 288050), (146, 144025), (175, 120158), (350, 60079), (365, 57610), (511, 41150), (730, 28805), (823, 25550), (1022, 20575), (1646, 12775), (1825, 11522), (2555, 8230), (3650, 5761), (4115, 5110)]