21240752

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{6007}}^1$

素因数の和:6045

約数の個数: 40

約数和(自身を含む): 46934496

約数和(自身を除く): 25693744

約数列:

[1, 2, 4, 8, 13, 16, 17, 26, 34, 52, 68, 104, 136, 208, 221, 272, 442, 884, 1768, 3536, 6007, 12014, 24028, 48056, 78091, 96112, 102119, 156182, 204238, 312364, 408476, 624728, 816952, 1249456, 1327547, 1633904, 2655094, 5310188, 10620376, 21240752]

約数ペア:

[(1, 21240752), (2, 10620376), (4, 5310188), (8, 2655094), (13, 1633904), (16, 1327547), (17, 1249456), (26, 816952), (34, 624728), (52, 408476), (68, 312364), (104, 204238), (136, 156182), (208, 102119), (221, 96112), (272, 78091), (442, 48056), (884, 24028), (1768, 12014), (3536, 6007)]