19713584

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{101}}^1\times {\mathrm{1109}}^1$

素因数の和:1229

約数の個数: 40

約数和(自身を含む): 42117840

約数和(自身を除く): 22404256

約数列:

[1, 2, 4, 8, 11, 16, 22, 44, 88, 101, 176, 202, 404, 808, 1109, 1111, 1616, 2218, 2222, 4436, 4444, 8872, 8888, 12199, 17744, 17776, 24398, 48796, 97592, 112009, 195184, 224018, 448036, 896072, 1232099, 1792144, 2464198, 4928396, 9856792, 19713584]

約数ペア:

[(1, 19713584), (2, 9856792), (4, 4928396), (8, 2464198), (11, 1792144), (16, 1232099), (22, 896072), (44, 448036), (88, 224018), (101, 195184), (176, 112009), (202, 97592), (404, 48796), (808, 24398), (1109, 17776), (1111, 17744), (1616, 12199), (2218, 8888), (2222, 8872), (4436, 4444)]