19784862

素因数分解:

$2^1\times 3^2\times {\mathrm{37}}^1\times {\mathrm{61}}^1\times {\mathrm{487}}^1$

素因数の和:593

約数の個数: 48

約数和(自身を含む): 44839392

約数和(自身を除く): 25054530

約数列:

[1, 2, 3, 6, 9, 18, 37, 61, 74, 111, 122, 183, 222, 333, 366, 487, 549, 666, 974, 1098, 1461, 2257, 2922, 4383, 4514, 6771, 8766, 13542, 18019, 20313, 29707, 36038, 40626, 54057, 59414, 89121, 108114, 162171, 178242, 267363, 324342, 534726, 1099159, 2198318, 3297477, 6594954, 9892431, 19784862]

約数ペア:

[(1, 19784862), (2, 9892431), (3, 6594954), (6, 3297477), (9, 2198318), (18, 1099159), (37, 534726), (61, 324342), (74, 267363), (111, 178242), (122, 162171), (183, 108114), (222, 89121), (333, 59414), (366, 54057), (487, 40626), (549, 36038), (666, 29707), (974, 20313), (1098, 18019), (1461, 13542), (2257, 8766), (2922, 6771), (4383, 4514)]