19684656

素因数分解:

$2^4\times 3^2\times {\mathrm{223}}^1\times {\mathrm{613}}^1$

素因数の和:850

約数の個数: 60

約数和(自身を含む): 55427008

約数和(自身を除く): 35742352

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 36, 48, 72, 144, 223, 446, 613, 669, 892, 1226, 1338, 1784, 1839, 2007, 2452, 2676, 3568, 3678, 4014, 4904, 5352, 5517, 7356, 8028, 9808, 10704, 11034, 14712, 16056, 22068, 29424, 32112, 44136, 88272, 136699, 273398, 410097, 546796, 820194, 1093592, 1230291, 1640388, 2187184, 2460582, 3280776, 4921164, 6561552, 9842328, 19684656]

約数ペア:

[(1, 19684656), (2, 9842328), (3, 6561552), (4, 4921164), (6, 3280776), (8, 2460582), (9, 2187184), (12, 1640388), (16, 1230291), (18, 1093592), (24, 820194), (36, 546796), (48, 410097), (72, 273398), (144, 136699), (223, 88272), (446, 44136), (613, 32112), (669, 29424), (892, 22068), (1226, 16056), (1338, 14712), (1784, 11034), (1839, 10704), (2007, 9808), (2452, 8028), (2676, 7356), (3568, 5517), (3678, 5352), (4014, 4904)]