21357414

素因数分解:

$2^1\times 3^2\times {\mathrm{13}}^1\times {\mathrm{107}}^1\times {\mathrm{853}}^1$

素因数の和:981

約数の個数: 48

約数和(自身を含む): 50358672

約数和(自身を除く): 29001258

約数列:

[1, 2, 3, 6, 9, 13, 18, 26, 39, 78, 107, 117, 214, 234, 321, 642, 853, 963, 1391, 1706, 1926, 2559, 2782, 4173, 5118, 7677, 8346, 11089, 12519, 15354, 22178, 25038, 33267, 66534, 91271, 99801, 182542, 199602, 273813, 547626, 821439, 1186523, 1642878, 2373046, 3559569, 7119138, 10678707, 21357414]

約数ペア:

[(1, 21357414), (2, 10678707), (3, 7119138), (6, 3559569), (9, 2373046), (13, 1642878), (18, 1186523), (26, 821439), (39, 547626), (78, 273813), (107, 199602), (117, 182542), (214, 99801), (234, 91271), (321, 66534), (642, 33267), (853, 25038), (963, 22178), (1391, 15354), (1706, 12519), (1926, 11089), (2559, 8346), (2782, 7677), (4173, 5118)]