20583992

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{947}}^1$

素因数の和:996

約数の個数: 64

約数和(自身を含む): 47779200

約数和(自身を除く): 27195208

約数列:

[1, 2, 4, 8, 11, 13, 19, 22, 26, 38, 44, 52, 76, 88, 104, 143, 152, 209, 247, 286, 418, 494, 572, 836, 947, 988, 1144, 1672, 1894, 1976, 2717, 3788, 5434, 7576, 10417, 10868, 12311, 17993, 20834, 21736, 24622, 35986, 41668, 49244, 71972, 83336, 98488, 135421, 143944, 197923, 233909, 270842, 395846, 467818, 541684, 791692, 935636, 1083368, 1583384, 1871272, 2572999, 5145998, 10291996, 20583992]

約数ペア:

[(1, 20583992), (2, 10291996), (4, 5145998), (8, 2572999), (11, 1871272), (13, 1583384), (19, 1083368), (22, 935636), (26, 791692), (38, 541684), (44, 467818), (52, 395846), (76, 270842), (88, 233909), (104, 197923), (143, 143944), (152, 135421), (209, 98488), (247, 83336), (286, 71972), (418, 49244), (494, 41668), (572, 35986), (836, 24622), (947, 21736), (988, 20834), (1144, 17993), (1672, 12311), (1894, 10868), (1976, 10417), (2717, 7576), (3788, 5434)]