20779626

素因数分解:

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

素因数の和:488

約数の個数: 64

約数和(自身を含む): 50688000

約数和(自身を除く): 29908374

約数列:

[1, 2, 3, 6, 7, 14, 21, 23, 42, 46, 49, 69, 98, 138, 147, 161, 294, 322, 343, 439, 483, 686, 878, 966, 1029, 1127, 1317, 2058, 2254, 2634, 3073, 3381, 6146, 6762, 7889, 9219, 10097, 15778, 18438, 20194, 21511, 23667, 30291, 43022, 47334, 60582, 64533, 70679, 129066, 141358, 150577, 212037, 301154, 424074, 451731, 494753, 903462, 989506, 1484259, 2968518, 3463271, 6926542, 10389813, 20779626]

約数ペア:

[(1, 20779626), (2, 10389813), (3, 6926542), (6, 3463271), (7, 2968518), (14, 1484259), (21, 989506), (23, 903462), (42, 494753), (46, 451731), (49, 424074), (69, 301154), (98, 212037), (138, 150577), (147, 141358), (161, 129066), (294, 70679), (322, 64533), (343, 60582), (439, 47334), (483, 43022), (686, 30291), (878, 23667), (966, 21511), (1029, 20194), (1127, 18438), (1317, 15778), (2058, 10097), (2254, 9219), (2634, 7889), (3073, 6762), (3381, 6146)]