21987288

素因数分解:

$2^3\times 3^4\times {\mathrm{33931}}^1$

素因数の和:33949

約数の個数: 40

約数和(自身を含む): 61586580

約数和(自身を除く): 39599292

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 27, 36, 54, 72, 81, 108, 162, 216, 324, 648, 33931, 67862, 101793, 135724, 203586, 271448, 305379, 407172, 610758, 814344, 916137, 1221516, 1832274, 2443032, 2748411, 3664548, 5496822, 7329096, 10993644, 21987288]

約数ペア:

[(1, 21987288), (2, 10993644), (3, 7329096), (4, 5496822), (6, 3664548), (8, 2748411), (9, 2443032), (12, 1832274), (18, 1221516), (24, 916137), (27, 814344), (36, 610758), (54, 407172), (72, 305379), (81, 271448), (108, 203586), (162, 135724), (216, 101793), (324, 67862), (648, 33931)]