21603868

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{179}}^1\times {\mathrm{211}}^1$

素因数の和:418

約数の個数: 48

約数和(自身を含む): 44876160

約数和(自身を除く): 23272292

約数列:

[1, 2, 4, 11, 13, 22, 26, 44, 52, 143, 179, 211, 286, 358, 422, 572, 716, 844, 1969, 2321, 2327, 2743, 3938, 4642, 4654, 5486, 7876, 9284, 9308, 10972, 25597, 30173, 37769, 51194, 60346, 75538, 102388, 120692, 151076, 415459, 490997, 830918, 981994, 1661836, 1963988, 5400967, 10801934, 21603868]

約数ペア:

[(1, 21603868), (2, 10801934), (4, 5400967), (11, 1963988), (13, 1661836), (22, 981994), (26, 830918), (44, 490997), (52, 415459), (143, 151076), (179, 120692), (211, 102388), (286, 75538), (358, 60346), (422, 51194), (572, 37769), (716, 30173), (844, 25597), (1969, 10972), (2321, 9308), (2327, 9284), (2743, 7876), (3938, 5486), (4642, 4654)]