21803940

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{4177}}^1$

素因数の和:4221

約数の個数: 72

約数和(自身を含む): 68435640

約数和(自身を除く): 46631700

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 29, 30, 36, 45, 58, 60, 87, 90, 116, 145, 174, 180, 261, 290, 348, 435, 522, 580, 870, 1044, 1305, 1740, 2610, 4177, 5220, 8354, 12531, 16708, 20885, 25062, 37593, 41770, 50124, 62655, 75186, 83540, 121133, 125310, 150372, 187965, 242266, 250620, 363399, 375930, 484532, 605665, 726798, 751860, 1090197, 1211330, 1453596, 1816995, 2180394, 2422660, 3633990, 4360788, 5450985, 7267980, 10901970, 21803940]

約数ペア:

[(1, 21803940), (2, 10901970), (3, 7267980), (4, 5450985), (5, 4360788), (6, 3633990), (9, 2422660), (10, 2180394), (12, 1816995), (15, 1453596), (18, 1211330), (20, 1090197), (29, 751860), (30, 726798), (36, 605665), (45, 484532), (58, 375930), (60, 363399), (87, 250620), (90, 242266), (116, 187965), (145, 150372), (174, 125310), (180, 121133), (261, 83540), (290, 75186), (348, 62655), (435, 50124), (522, 41770), (580, 37593), (870, 25062), (1044, 20885), (1305, 16708), (1740, 12531), (2610, 8354), (4177, 5220)]