21786908

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{929}}^1$

素因数の和:998

約数の個数: 48

約数和(自身を含む): 45934560

約数和(自身を除く): 24147652

約数列:

[1, 2, 4, 11, 13, 22, 26, 41, 44, 52, 82, 143, 164, 286, 451, 533, 572, 902, 929, 1066, 1804, 1858, 2132, 3716, 5863, 10219, 11726, 12077, 20438, 23452, 24154, 38089, 40876, 48308, 76178, 132847, 152356, 265694, 418979, 495157, 531388, 837958, 990314, 1675916, 1980628, 5446727, 10893454, 21786908]

約数ペア:

[(1, 21786908), (2, 10893454), (4, 5446727), (11, 1980628), (13, 1675916), (22, 990314), (26, 837958), (41, 531388), (44, 495157), (52, 418979), (82, 265694), (143, 152356), (164, 132847), (286, 76178), (451, 48308), (533, 40876), (572, 38089), (902, 24154), (929, 23452), (1066, 20438), (1804, 12077), (1858, 11726), (2132, 10219), (3716, 5863)]