221988956

素因数分解:

$2^2\times 7^1\times {\mathrm{67}}^1\times {\mathrm{241}}^1\times {\mathrm{491}}^1$

素因数の和:810

約数の個数: 48

約数和(自身を含む): 453395712

約数和(自身を除く): 231406756

約数列:

[1, 2, 4, 7, 14, 28, 67, 134, 241, 268, 469, 482, 491, 938, 964, 982, 1687, 1876, 1964, 3374, 3437, 6748, 6874, 13748, 16147, 32294, 32897, 64588, 65794, 113029, 118331, 131588, 226058, 230279, 236662, 452116, 460558, 473324, 828317, 921116, 1656634, 3313268, 7928177, 15856354, 31712708, 55497239, 110994478, 221988956]

約数ペア:

[(1, 221988956), (2, 110994478), (4, 55497239), (7, 31712708), (14, 15856354), (28, 7928177), (67, 3313268), (134, 1656634), (241, 921116), (268, 828317), (469, 473324), (482, 460558), (491, 452116), (938, 236662), (964, 230279), (982, 226058), (1687, 131588), (1876, 118331), (1964, 113029), (3374, 65794), (3437, 64588), (6748, 32897), (6874, 32294), (13748, 16147)]