21787590

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{103}}^1\times {\mathrm{641}}^1$

素因数の和:765

約数の個数: 64

約数和(自身を含む): 57687552

約数和(自身を除く): 35899962

約数列:

[1, 2, 3, 5, 6, 10, 11, 15, 22, 30, 33, 55, 66, 103, 110, 165, 206, 309, 330, 515, 618, 641, 1030, 1133, 1282, 1545, 1923, 2266, 3090, 3205, 3399, 3846, 5665, 6410, 6798, 7051, 9615, 11330, 14102, 16995, 19230, 21153, 33990, 35255, 42306, 66023, 70510, 105765, 132046, 198069, 211530, 330115, 396138, 660230, 726253, 990345, 1452506, 1980690, 2178759, 3631265, 4357518, 7262530, 10893795, 21787590]

約数ペア:

[(1, 21787590), (2, 10893795), (3, 7262530), (5, 4357518), (6, 3631265), (10, 2178759), (11, 1980690), (15, 1452506), (22, 990345), (30, 726253), (33, 660230), (55, 396138), (66, 330115), (103, 211530), (110, 198069), (165, 132046), (206, 105765), (309, 70510), (330, 66023), (515, 42306), (618, 35255), (641, 33990), (1030, 21153), (1133, 19230), (1282, 16995), (1545, 14102), (1923, 11330), (2266, 9615), (3090, 7051), (3205, 6798), (3399, 6410), (3846, 5665)]