21828716

素因数分解:

$2^2\times 7^2\times {\mathrm{13}}^2\times {\mathrm{659}}^1$

素因数の和:703

約数の個数: 54

約数和(自身を含む): 48191220

約数和(自身を除く): 26362504

約数列:

[1, 2, 4, 7, 13, 14, 26, 28, 49, 52, 91, 98, 169, 182, 196, 338, 364, 637, 659, 676, 1183, 1274, 1318, 2366, 2548, 2636, 4613, 4732, 8281, 8567, 9226, 16562, 17134, 18452, 32291, 33124, 34268, 59969, 64582, 111371, 119938, 129164, 222742, 239876, 419783, 445484, 779597, 839566, 1559194, 1679132, 3118388, 5457179, 10914358, 21828716]

約数ペア:

[(1, 21828716), (2, 10914358), (4, 5457179), (7, 3118388), (13, 1679132), (14, 1559194), (26, 839566), (28, 779597), (49, 445484), (52, 419783), (91, 239876), (98, 222742), (169, 129164), (182, 119938), (196, 111371), (338, 64582), (364, 59969), (637, 34268), (659, 33124), (676, 32291), (1183, 18452), (1274, 17134), (1318, 16562), (2366, 9226), (2548, 8567), (2636, 8281), (4613, 4732)]