19980216

素因数分解:

$2^3\times 3^3\times {\mathrm{233}}^1\times {\mathrm{397}}^1$

素因数の和:645

約数の個数: 64

約数和(自身を含む): 55879200

約数和(自身を除く): 35898984

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 27, 36, 54, 72, 108, 216, 233, 397, 466, 699, 794, 932, 1191, 1398, 1588, 1864, 2097, 2382, 2796, 3176, 3573, 4194, 4764, 5592, 6291, 7146, 8388, 9528, 10719, 12582, 14292, 16776, 21438, 25164, 28584, 42876, 50328, 85752, 92501, 185002, 277503, 370004, 555006, 740008, 832509, 1110012, 1665018, 2220024, 2497527, 3330036, 4995054, 6660072, 9990108, 19980216]

約数ペア:

[(1, 19980216), (2, 9990108), (3, 6660072), (4, 4995054), (6, 3330036), (8, 2497527), (9, 2220024), (12, 1665018), (18, 1110012), (24, 832509), (27, 740008), (36, 555006), (54, 370004), (72, 277503), (108, 185002), (216, 92501), (233, 85752), (397, 50328), (466, 42876), (699, 28584), (794, 25164), (932, 21438), (1191, 16776), (1398, 14292), (1588, 12582), (1864, 10719), (2097, 9528), (2382, 8388), (2796, 7146), (3176, 6291), (3573, 5592), (4194, 4764)]