21984840

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{173}}^1\times {\mathrm{353}}^1$

素因数の和:543

約数の個数: 96

約数和(自身を含む): 72067320

約数和(自身を除く): 50082480

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 30, 36, 40, 45, 60, 72, 90, 120, 173, 180, 346, 353, 360, 519, 692, 706, 865, 1038, 1059, 1384, 1412, 1557, 1730, 1765, 2076, 2118, 2595, 2824, 3114, 3177, 3460, 3530, 4152, 4236, 5190, 5295, 6228, 6354, 6920, 7060, 7785, 8472, 10380, 10590, 12456, 12708, 14120, 15570, 15885, 20760, 21180, 25416, 31140, 31770, 42360, 61069, 62280, 63540, 122138, 127080, 183207, 244276, 305345, 366414, 488552, 549621, 610690, 732828, 916035, 1099242, 1221380, 1465656, 1832070, 2198484, 2442760, 2748105, 3664140, 4396968, 5496210, 7328280, 10992420, 21984840]

約数ペア:

[(1, 21984840), (2, 10992420), (3, 7328280), (4, 5496210), (5, 4396968), (6, 3664140), (8, 2748105), (9, 2442760), (10, 2198484), (12, 1832070), (15, 1465656), (18, 1221380), (20, 1099242), (24, 916035), (30, 732828), (36, 610690), (40, 549621), (45, 488552), (60, 366414), (72, 305345), (90, 244276), (120, 183207), (173, 127080), (180, 122138), (346, 63540), (353, 62280), (360, 61069), (519, 42360), (692, 31770), (706, 31140), (865, 25416), (1038, 21180), (1059, 20760), (1384, 15885), (1412, 15570), (1557, 14120), (1730, 12708), (1765, 12456), (2076, 10590), (2118, 10380), (2595, 8472), (2824, 7785), (3114, 7060), (3177, 6920), (3460, 6354), (3530, 6228), (4152, 5295), (4236, 5190)]