21372832

素因数分解:

$2^5\times {\mathrm{13}}^1\times {\mathrm{83}}^1\times {\mathrm{619}}^1$

素因数の和:725

約数の個数: 48

約数和(自身を含む): 45934560

約数和(自身を除く): 24561728

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 83, 104, 166, 208, 332, 416, 619, 664, 1079, 1238, 1328, 2158, 2476, 2656, 4316, 4952, 8047, 8632, 9904, 16094, 17264, 19808, 32188, 34528, 51377, 64376, 102754, 128752, 205508, 257504, 411016, 667901, 822032, 1335802, 1644064, 2671604, 5343208, 10686416, 21372832]

約数ペア:

[(1, 21372832), (2, 10686416), (4, 5343208), (8, 2671604), (13, 1644064), (16, 1335802), (26, 822032), (32, 667901), (52, 411016), (83, 257504), (104, 205508), (166, 128752), (208, 102754), (332, 64376), (416, 51377), (619, 34528), (664, 32188), (1079, 19808), (1238, 17264), (1328, 16094), (2158, 9904), (2476, 8632), (2656, 8047), (4316, 4952)]