20217694868

素因数分解:

$2^2\times 7^1\times {\mathrm{29}}^1\times {\mathrm{97}}^1\times {\mathrm{256687}}^1$

素因数の和:256824

約数の個数: 48

約数和(自身を含む): 42261112320

約数和(自身を除く): 22043417452

約数列:

[1, 2, 4, 7, 14, 28, 29, 58, 97, 116, 194, 203, 388, 406, 679, 812, 1358, 2716, 2813, 5626, 11252, 19691, 39382, 78764, 256687, 513374, 1026748, 1796809, 3593618, 7187236, 7443923, 14887846, 24898639, 29775692, 49797278, 52107461, 99594556, 104214922, 174290473, 208429844, 348580946, 697161892, 722060531, 1444121062, 2888242124, 5054423717, 10108847434, 20217694868]

約数ペア:

[(1, 20217694868), (2, 10108847434), (4, 5054423717), (7, 2888242124), (14, 1444121062), (28, 722060531), (29, 697161892), (58, 348580946), (97, 208429844), (116, 174290473), (194, 104214922), (203, 99594556), (388, 52107461), (406, 49797278), (679, 29775692), (812, 24898639), (1358, 14887846), (2716, 7443923), (2813, 7187236), (5626, 3593618), (11252, 1796809), (19691, 1026748), (39382, 513374), (78764, 256687)]