21200556

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{3673}}^1$

素因数の和:3730

約数の個数: 48

約数和(自身を含む): 54727904

約数和(自身を除く): 33527348

約数列:

[1, 2, 3, 4, 6, 12, 13, 26, 37, 39, 52, 74, 78, 111, 148, 156, 222, 444, 481, 962, 1443, 1924, 2886, 3673, 5772, 7346, 11019, 14692, 22038, 44076, 47749, 95498, 135901, 143247, 190996, 271802, 286494, 407703, 543604, 572988, 815406, 1630812, 1766713, 3533426, 5300139, 7066852, 10600278, 21200556]

約数ペア:

[(1, 21200556), (2, 10600278), (3, 7066852), (4, 5300139), (6, 3533426), (12, 1766713), (13, 1630812), (26, 815406), (37, 572988), (39, 543604), (52, 407703), (74, 286494), (78, 271802), (111, 190996), (148, 143247), (156, 135901), (222, 95498), (444, 47749), (481, 44076), (962, 22038), (1443, 14692), (1924, 11019), (2886, 7346), (3673, 5772)]