21704879812

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^2\times {\mathrm{17}}^1\times {\mathrm{376847}}^1$

素因数の和:376897

約数の個数: 72

約数和(自身を含む): 50521750272

約数和(自身を除く): 28816870460

約数列:

[1, 2, 4, 7, 11, 14, 17, 22, 28, 34, 44, 68, 77, 119, 121, 154, 187, 238, 242, 308, 374, 476, 484, 748, 847, 1309, 1694, 2057, 2618, 3388, 4114, 5236, 8228, 14399, 28798, 57596, 376847, 753694, 1507388, 2637929, 4145317, 5275858, 6406399, 8290634, 10551716, 12812798, 16581268, 25625596, 29017219, 44844793, 45598487, 58034438, 70470389, 89689586, 91196974, 116068876, 140940778, 179379172, 182393948, 281881556, 319189409, 493292723, 638378818, 775174279, 986585446, 1276757636, 1550348558, 1973170892, 3100697116, 5426219953, 10852439906, 21704879812]

約数ペア:

[(1, 21704879812), (2, 10852439906), (4, 5426219953), (7, 3100697116), (11, 1973170892), (14, 1550348558), (17, 1276757636), (22, 986585446), (28, 775174279), (34, 638378818), (44, 493292723), (68, 319189409), (77, 281881556), (119, 182393948), (121, 179379172), (154, 140940778), (187, 116068876), (238, 91196974), (242, 89689586), (308, 70470389), (374, 58034438), (476, 45598487), (484, 44844793), (748, 29017219), (847, 25625596), (1309, 16581268), (1694, 12812798), (2057, 10551716), (2618, 8290634), (3388, 6406399), (4114, 5275858), (5236, 4145317), (8228, 2637929), (14399, 1507388), (28798, 753694), (57596, 376847)]