21240780

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{32183}}^1$

素因数の和:32206

約数の個数: 48

約数和(自身を含む): 64882944

約数和(自身を除く): 43642164

約数列:

[1, 2, 3, 4, 5, 6, 10, 11, 12, 15, 20, 22, 30, 33, 44, 55, 60, 66, 110, 132, 165, 220, 330, 660, 32183, 64366, 96549, 128732, 160915, 193098, 321830, 354013, 386196, 482745, 643660, 708026, 965490, 1062039, 1416052, 1770065, 1930980, 2124078, 3540130, 4248156, 5310195, 7080260, 10620390, 21240780]

約数ペア:

[(1, 21240780), (2, 10620390), (3, 7080260), (4, 5310195), (5, 4248156), (6, 3540130), (10, 2124078), (11, 1930980), (12, 1770065), (15, 1416052), (20, 1062039), (22, 965490), (30, 708026), (33, 643660), (44, 482745), (55, 386196), (60, 354013), (66, 321830), (110, 193098), (132, 160915), (165, 128732), (220, 96549), (330, 64366), (660, 32183)]