20985696

素因数分解:

$2^5\times 3^3\times {\mathrm{107}}^1\times {\mathrm{227}}^1$

素因数の和:353

約数の個数: 96

約数和(自身を含む): 62052480

約数和(自身を除く): 41066784

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 27, 32, 36, 48, 54, 72, 96, 107, 108, 144, 214, 216, 227, 288, 321, 428, 432, 454, 642, 681, 856, 864, 908, 963, 1284, 1362, 1712, 1816, 1926, 2043, 2568, 2724, 2889, 3424, 3632, 3852, 4086, 5136, 5448, 5778, 6129, 7264, 7704, 8172, 10272, 10896, 11556, 12258, 15408, 16344, 21792, 23112, 24289, 24516, 30816, 32688, 46224, 48578, 49032, 65376, 72867, 92448, 97156, 98064, 145734, 194312, 196128, 218601, 291468, 388624, 437202, 582936, 655803, 777248, 874404, 1165872, 1311606, 1748808, 2331744, 2623212, 3497616, 5246424, 6995232, 10492848, 20985696]

約数ペア:

[(1, 20985696), (2, 10492848), (3, 6995232), (4, 5246424), (6, 3497616), (8, 2623212), (9, 2331744), (12, 1748808), (16, 1311606), (18, 1165872), (24, 874404), (27, 777248), (32, 655803), (36, 582936), (48, 437202), (54, 388624), (72, 291468), (96, 218601), (107, 196128), (108, 194312), (144, 145734), (214, 98064), (216, 97156), (227, 92448), (288, 72867), (321, 65376), (428, 49032), (432, 48578), (454, 46224), (642, 32688), (681, 30816), (856, 24516), (864, 24289), (908, 23112), (963, 21792), (1284, 16344), (1362, 15408), (1712, 12258), (1816, 11556), (1926, 10896), (2043, 10272), (2568, 8172), (2724, 7704), (2889, 7264), (3424, 6129), (3632, 5778), (3852, 5448), (4086, 5136)]