21548926

素因数分解:

$2^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{163}}^1$

素因数の和:269

約数の個数: 48

約数和(自身を含む): 40383360

約数和(自身を除く): 18834434

約数列:

[1, 2, 7, 14, 19, 38, 49, 71, 98, 133, 142, 163, 266, 326, 497, 931, 994, 1141, 1349, 1862, 2282, 2698, 3097, 3479, 6194, 6958, 7987, 9443, 11573, 15974, 18886, 21679, 23146, 43358, 66101, 81011, 132202, 151753, 162022, 219887, 303506, 439774, 567077, 1134154, 1539209, 3078418, 10774463, 21548926]

約数ペア:

[(1, 21548926), (2, 10774463), (7, 3078418), (14, 1539209), (19, 1134154), (38, 567077), (49, 439774), (71, 303506), (98, 219887), (133, 162022), (142, 151753), (163, 132202), (266, 81011), (326, 66101), (497, 43358), (931, 23146), (994, 21679), (1141, 18886), (1349, 15974), (1862, 11573), (2282, 9443), (2698, 7987), (3097, 6958), (3479, 6194)]