21110650

素因数分解:

$2^1\times 5^2\times {\mathrm{11}}^1\times {\mathrm{131}}^1\times {\mathrm{293}}^1$

素因数の和:447

約数の個数: 48

約数和(自身を含む): 43309728

約数和(自身を除く): 22199078

約数列:

[1, 2, 5, 10, 11, 22, 25, 50, 55, 110, 131, 262, 275, 293, 550, 586, 655, 1310, 1441, 1465, 2882, 2930, 3223, 3275, 6446, 6550, 7205, 7325, 14410, 14650, 16115, 32230, 36025, 38383, 72050, 76766, 80575, 161150, 191915, 383830, 422213, 844426, 959575, 1919150, 2111065, 4222130, 10555325, 21110650]

約数ペア:

[(1, 21110650), (2, 10555325), (5, 4222130), (10, 2111065), (11, 1919150), (22, 959575), (25, 844426), (50, 422213), (55, 383830), (110, 191915), (131, 161150), (262, 80575), (275, 76766), (293, 72050), (550, 38383), (586, 36025), (655, 32230), (1310, 16115), (1441, 14650), (1465, 14410), (2882, 7325), (2930, 7205), (3223, 6550), (3275, 6446)]