21829340

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{113}}^1\times {\mathrm{743}}^1$

素因数の和:878

約数の個数: 48

約数和(自身を含む): 49871808

約数和(自身を除く): 28042468

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 113, 130, 226, 260, 452, 565, 743, 1130, 1469, 1486, 2260, 2938, 2972, 3715, 5876, 7345, 7430, 9659, 14690, 14860, 19318, 29380, 38636, 48295, 83959, 96590, 167918, 193180, 335836, 419795, 839590, 1091467, 1679180, 2182934, 4365868, 5457335, 10914670, 21829340]

約数ペア:

[(1, 21829340), (2, 10914670), (4, 5457335), (5, 4365868), (10, 2182934), (13, 1679180), (20, 1091467), (26, 839590), (52, 419795), (65, 335836), (113, 193180), (130, 167918), (226, 96590), (260, 83959), (452, 48295), (565, 38636), (743, 29380), (1130, 19318), (1469, 14860), (1486, 14690), (2260, 9659), (2938, 7430), (2972, 7345), (3715, 5876)]