21680304

素因数分解:

$2^4\times 3^1\times {\mathrm{17}}^1\times {\mathrm{163}}^2$

素因数の和:354

約数の個数: 60

約数和(自身を含む): 59668056

約数和(自身を除く): 37987752

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 17, 24, 34, 48, 51, 68, 102, 136, 163, 204, 272, 326, 408, 489, 652, 816, 978, 1304, 1956, 2608, 2771, 3912, 5542, 7824, 8313, 11084, 16626, 22168, 26569, 33252, 44336, 53138, 66504, 79707, 106276, 133008, 159414, 212552, 318828, 425104, 451673, 637656, 903346, 1275312, 1355019, 1806692, 2710038, 3613384, 5420076, 7226768, 10840152, 21680304]

約数ペア:

[(1, 21680304), (2, 10840152), (3, 7226768), (4, 5420076), (6, 3613384), (8, 2710038), (12, 1806692), (16, 1355019), (17, 1275312), (24, 903346), (34, 637656), (48, 451673), (51, 425104), (68, 318828), (102, 212552), (136, 159414), (163, 133008), (204, 106276), (272, 79707), (326, 66504), (408, 53138), (489, 44336), (652, 33252), (816, 26569), (978, 22168), (1304, 16626), (1956, 11084), (2608, 8313), (2771, 7824), (3912, 5542)]