81781623

素因数分解:

$3^3\times 7^1\times {\mathrm{11}}^1\times {\mathrm{139}}^1\times {\mathrm{283}}^1$

素因数の和:449

約数の個数: 64

約数和(自身を含む): 152678400

約数和(自身を除く): 70896777

約数列:

[1, 3, 7, 9, 11, 21, 27, 33, 63, 77, 99, 139, 189, 231, 283, 297, 417, 693, 849, 973, 1251, 1529, 1981, 2079, 2547, 2919, 3113, 3753, 4587, 5943, 7641, 8757, 9339, 10703, 13761, 17829, 21791, 26271, 28017, 32109, 39337, 41283, 53487, 65373, 84051, 96327, 118011, 196119, 275359, 288981, 354033, 432707, 588357, 826077, 1062099, 1298121, 2478231, 3028949, 3894363, 7434693, 9086847, 11683089, 27260541, 81781623]

約数ペア:

[(1, 81781623), (3, 27260541), (7, 11683089), (9, 9086847), (11, 7434693), (21, 3894363), (27, 3028949), (33, 2478231), (63, 1298121), (77, 1062099), (99, 826077), (139, 588357), (189, 432707), (231, 354033), (283, 288981), (297, 275359), (417, 196119), (693, 118011), (849, 96327), (973, 84051), (1251, 65373), (1529, 53487), (1981, 41283), (2079, 39337), (2547, 32109), (2919, 28017), (3113, 26271), (3753, 21791), (4587, 17829), (5943, 13761), (7641, 10703), (8757, 9339)]