20421984

素因数分解:

$2^5\times 3^1\times {\mathrm{11}}^1\times {\mathrm{83}}^1\times {\mathrm{233}}^1$

素因数の和:340

約数の個数: 96

約数和(自身を含む): 59439744

約数和(自身を除く): 39017760

約数列:

[1, 2, 3, 4, 6, 8, 11, 12, 16, 22, 24, 32, 33, 44, 48, 66, 83, 88, 96, 132, 166, 176, 233, 249, 264, 332, 352, 466, 498, 528, 664, 699, 913, 932, 996, 1056, 1328, 1398, 1826, 1864, 1992, 2563, 2656, 2739, 2796, 3652, 3728, 3984, 5126, 5478, 5592, 7304, 7456, 7689, 7968, 10252, 10956, 11184, 14608, 15378, 19339, 20504, 21912, 22368, 29216, 30756, 38678, 41008, 43824, 58017, 61512, 77356, 82016, 87648, 116034, 123024, 154712, 212729, 232068, 246048, 309424, 425458, 464136, 618848, 638187, 850916, 928272, 1276374, 1701832, 1856544, 2552748, 3403664, 5105496, 6807328, 10210992, 20421984]

約数ペア:

[(1, 20421984), (2, 10210992), (3, 6807328), (4, 5105496), (6, 3403664), (8, 2552748), (11, 1856544), (12, 1701832), (16, 1276374), (22, 928272), (24, 850916), (32, 638187), (33, 618848), (44, 464136), (48, 425458), (66, 309424), (83, 246048), (88, 232068), (96, 212729), (132, 154712), (166, 123024), (176, 116034), (233, 87648), (249, 82016), (264, 77356), (332, 61512), (352, 58017), (466, 43824), (498, 41008), (528, 38678), (664, 30756), (699, 29216), (913, 22368), (932, 21912), (996, 20504), (1056, 19339), (1328, 15378), (1398, 14608), (1826, 11184), (1864, 10956), (1992, 10252), (2563, 7968), (2656, 7689), (2739, 7456), (2796, 7304), (3652, 5592), (3728, 5478), (3984, 5126)]