19931478

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{439}}^1$

素因数の和:521

約数の個数: 64

約数和(自身を含む): 48660480

約数和(自身を除く): 28729002

約数列:

[1, 2, 3, 6, 7, 14, 21, 23, 42, 46, 47, 69, 94, 138, 141, 161, 282, 322, 329, 439, 483, 658, 878, 966, 987, 1081, 1317, 1974, 2162, 2634, 3073, 3243, 6146, 6486, 7567, 9219, 10097, 15134, 18438, 20194, 20633, 22701, 30291, 41266, 45402, 60582, 61899, 70679, 123798, 141358, 144431, 212037, 288862, 424074, 433293, 474559, 866586, 949118, 1423677, 2847354, 3321913, 6643826, 9965739, 19931478]

約数ペア:

[(1, 19931478), (2, 9965739), (3, 6643826), (6, 3321913), (7, 2847354), (14, 1423677), (21, 949118), (23, 866586), (42, 474559), (46, 433293), (47, 424074), (69, 288862), (94, 212037), (138, 144431), (141, 141358), (161, 123798), (282, 70679), (322, 61899), (329, 60582), (439, 45402), (483, 41266), (658, 30291), (878, 22701), (966, 20633), (987, 20194), (1081, 18438), (1317, 15134), (1974, 10097), (2162, 9219), (2634, 7567), (3073, 6486), (3243, 6146)]