21639124

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{6211}}^1$

素因数の和:6295

約数の個数: 24

約数和(自身を含む): 41396768

約数和(自身を除く): 19757644

約数列:

[1, 2, 4, 13, 26, 52, 67, 134, 268, 871, 1742, 3484, 6211, 12422, 24844, 80743, 161486, 322972, 416137, 832274, 1664548, 5409781, 10819562, 21639124]

約数ペア:

[(1, 21639124), (2, 10819562), (4, 5409781), (13, 1664548), (26, 832274), (52, 416137), (67, 322972), (134, 161486), (268, 80743), (871, 24844), (1742, 12422), (3484, 6211)]