20898612

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{127}}^1\times {\mathrm{653}}^1$

素因数の和:797

約数の個数: 72

約数和(自身を含む): 60942336

約数和(自身を除く): 40043724

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 36, 42, 63, 84, 126, 127, 252, 254, 381, 508, 653, 762, 889, 1143, 1306, 1524, 1778, 1959, 2286, 2612, 2667, 3556, 3918, 4571, 4572, 5334, 5877, 7836, 8001, 9142, 10668, 11754, 13713, 16002, 18284, 23508, 27426, 32004, 41139, 54852, 82278, 82931, 164556, 165862, 248793, 331724, 497586, 580517, 746379, 995172, 1161034, 1492758, 1741551, 2322068, 2985516, 3483102, 5224653, 6966204, 10449306, 20898612]

約数ペア:

[(1, 20898612), (2, 10449306), (3, 6966204), (4, 5224653), (6, 3483102), (7, 2985516), (9, 2322068), (12, 1741551), (14, 1492758), (18, 1161034), (21, 995172), (28, 746379), (36, 580517), (42, 497586), (63, 331724), (84, 248793), (126, 165862), (127, 164556), (252, 82931), (254, 82278), (381, 54852), (508, 41139), (653, 32004), (762, 27426), (889, 23508), (1143, 18284), (1306, 16002), (1524, 13713), (1778, 11754), (1959, 10668), (2286, 9142), (2612, 8001), (2667, 7836), (3556, 5877), (3918, 5334), (4571, 4572)]