21605004

素因数分解:

$2^2\times 3^2\times {\mathrm{23}}^1\times {\mathrm{97}}^1\times {\mathrm{269}}^1$

素因数の和:399

約数の個数: 72

約数和(自身を含む): 57788640

約数和(自身を除く): 36183636

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 23, 36, 46, 69, 92, 97, 138, 194, 207, 269, 276, 291, 388, 414, 538, 582, 807, 828, 873, 1076, 1164, 1614, 1746, 2231, 2421, 3228, 3492, 4462, 4842, 6187, 6693, 8924, 9684, 12374, 13386, 18561, 20079, 24748, 26093, 26772, 37122, 40158, 52186, 55683, 74244, 78279, 80316, 104372, 111366, 156558, 222732, 234837, 313116, 469674, 600139, 939348, 1200278, 1800417, 2400556, 3600834, 5401251, 7201668, 10802502, 21605004]

約数ペア:

[(1, 21605004), (2, 10802502), (3, 7201668), (4, 5401251), (6, 3600834), (9, 2400556), (12, 1800417), (18, 1200278), (23, 939348), (36, 600139), (46, 469674), (69, 313116), (92, 234837), (97, 222732), (138, 156558), (194, 111366), (207, 104372), (269, 80316), (276, 78279), (291, 74244), (388, 55683), (414, 52186), (538, 40158), (582, 37122), (807, 26772), (828, 26093), (873, 24748), (1076, 20079), (1164, 18561), (1614, 13386), (1746, 12374), (2231, 9684), (2421, 8924), (3228, 6693), (3492, 6187), (4462, 4842)]