20932905

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{59}}^1\times {\mathrm{109}}^1$

素因数の和:214

約数の個数: 64

約数和(自身を含む): 40550400

約数和(自身を除く): 19617495

約数列:

[1, 3, 5, 7, 15, 21, 31, 35, 59, 93, 105, 109, 155, 177, 217, 295, 327, 413, 465, 545, 651, 763, 885, 1085, 1239, 1635, 1829, 2065, 2289, 3255, 3379, 3815, 5487, 6195, 6431, 9145, 10137, 11445, 12803, 16895, 19293, 23653, 27435, 32155, 38409, 45017, 50685, 64015, 70959, 96465, 118265, 135051, 192045, 199361, 225085, 354795, 598083, 675255, 996805, 1395527, 2990415, 4186581, 6977635, 20932905]

約数ペア:

[(1, 20932905), (3, 6977635), (5, 4186581), (7, 2990415), (15, 1395527), (21, 996805), (31, 675255), (35, 598083), (59, 354795), (93, 225085), (105, 199361), (109, 192045), (155, 135051), (177, 118265), (217, 96465), (295, 70959), (327, 64015), (413, 50685), (465, 45017), (545, 38409), (651, 32155), (763, 27435), (885, 23653), (1085, 19293), (1239, 16895), (1635, 12803), (1829, 11445), (2065, 10137), (2289, 9145), (3255, 6431), (3379, 6195), (3815, 5487)]