21497410

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{293}}^1$

素因数の和:363

約数の個数: 64

約数和(自身を含む): 45722880

約数和(自身を除く): 24225470

約数列:

[1, 2, 5, 10, 11, 22, 23, 29, 46, 55, 58, 110, 115, 145, 230, 253, 290, 293, 319, 506, 586, 638, 667, 1265, 1334, 1465, 1595, 2530, 2930, 3190, 3223, 3335, 6446, 6670, 6739, 7337, 8497, 13478, 14674, 16115, 16994, 32230, 33695, 36685, 42485, 67390, 73370, 74129, 84970, 93467, 148258, 186934, 195431, 370645, 390862, 467335, 741290, 934670, 977155, 1954310, 2149741, 4299482, 10748705, 21497410]

約数ペア:

[(1, 21497410), (2, 10748705), (5, 4299482), (10, 2149741), (11, 1954310), (22, 977155), (23, 934670), (29, 741290), (46, 467335), (55, 390862), (58, 370645), (110, 195431), (115, 186934), (145, 148258), (230, 93467), (253, 84970), (290, 74129), (293, 73370), (319, 67390), (506, 42485), (586, 36685), (638, 33695), (667, 32230), (1265, 16994), (1334, 16115), (1465, 14674), (1595, 13478), (2530, 8497), (2930, 7337), (3190, 6739), (3223, 6670), (3335, 6446)]