21353916

素因数分解:

$2^2\times 3^1\times {\mathrm{31}}^1\times {\mathrm{137}}^1\times {\mathrm{419}}^1$

素因数の和:594

約数の個数: 48

約数和(自身を含む): 51932160

約数和(自身を除く): 30578244

約数列:

[1, 2, 3, 4, 6, 12, 31, 62, 93, 124, 137, 186, 274, 372, 411, 419, 548, 822, 838, 1257, 1644, 1676, 2514, 4247, 5028, 8494, 12741, 12989, 16988, 25482, 25978, 38967, 50964, 51956, 57403, 77934, 114806, 155868, 172209, 229612, 344418, 688836, 1779493, 3558986, 5338479, 7117972, 10676958, 21353916]

約数ペア:

[(1, 21353916), (2, 10676958), (3, 7117972), (4, 5338479), (6, 3558986), (12, 1779493), (31, 688836), (62, 344418), (93, 229612), (124, 172209), (137, 155868), (186, 114806), (274, 77934), (372, 57403), (411, 51956), (419, 50964), (548, 38967), (822, 25978), (838, 25482), (1257, 16988), (1644, 12989), (1676, 12741), (2514, 8494), (4247, 5028)]