21073250

素因数分解:

$2^1\times 5^3\times {\mathrm{11}}^1\times {\mathrm{79}}^1\times {\mathrm{97}}^1$

素因数の和:204

約数の個数: 64

約数和(自身を含む): 44029440

約数和(自身を除く): 22956190

約数列:

[1, 2, 5, 10, 11, 22, 25, 50, 55, 79, 97, 110, 125, 158, 194, 250, 275, 395, 485, 550, 790, 869, 970, 1067, 1375, 1738, 1975, 2134, 2425, 2750, 3950, 4345, 4850, 5335, 7663, 8690, 9875, 10670, 12125, 15326, 19750, 21725, 24250, 26675, 38315, 43450, 53350, 76630, 84293, 108625, 133375, 168586, 191575, 217250, 266750, 383150, 421465, 842930, 957875, 1915750, 2107325, 4214650, 10536625, 21073250]

約数ペア:

[(1, 21073250), (2, 10536625), (5, 4214650), (10, 2107325), (11, 1915750), (22, 957875), (25, 842930), (50, 421465), (55, 383150), (79, 266750), (97, 217250), (110, 191575), (125, 168586), (158, 133375), (194, 108625), (250, 84293), (275, 76630), (395, 53350), (485, 43450), (550, 38315), (790, 26675), (869, 24250), (970, 21725), (1067, 19750), (1375, 15326), (1738, 12125), (1975, 10670), (2134, 9875), (2425, 8690), (2750, 7663), (3950, 5335), (4345, 4850)]