21912700

素因数分解:

$2^2\times 5^2\times {\mathrm{19}}^2\times {\mathrm{607}}^1$

素因数の和:659

約数の個数: 54

約数和(自身を含む): 50267616

約数和(自身を除く): 28354916

約数列:

[1, 2, 4, 5, 10, 19, 20, 25, 38, 50, 76, 95, 100, 190, 361, 380, 475, 607, 722, 950, 1214, 1444, 1805, 1900, 2428, 3035, 3610, 6070, 7220, 9025, 11533, 12140, 15175, 18050, 23066, 30350, 36100, 46132, 57665, 60700, 115330, 219127, 230660, 288325, 438254, 576650, 876508, 1095635, 1153300, 2191270, 4382540, 5478175, 10956350, 21912700]

約数ペア:

[(1, 21912700), (2, 10956350), (4, 5478175), (5, 4382540), (10, 2191270), (19, 1153300), (20, 1095635), (25, 876508), (38, 576650), (50, 438254), (76, 288325), (95, 230660), (100, 219127), (190, 115330), (361, 60700), (380, 57665), (475, 46132), (607, 36100), (722, 30350), (950, 23066), (1214, 18050), (1444, 15175), (1805, 12140), (1900, 11533), (2428, 9025), (3035, 7220), (3610, 6070)]