21428330

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{1637}}^1$

素因数の和:1679

約数の個数: 64

約数和(自身を含む): 50948352

約数和(自身を除く): 29520022

約数列:

[1, 2, 5, 7, 10, 11, 14, 17, 22, 34, 35, 55, 70, 77, 85, 110, 119, 154, 170, 187, 238, 374, 385, 595, 770, 935, 1190, 1309, 1637, 1870, 2618, 3274, 6545, 8185, 11459, 13090, 16370, 18007, 22918, 27829, 36014, 55658, 57295, 90035, 114590, 126049, 139145, 180070, 194803, 252098, 278290, 306119, 389606, 612238, 630245, 974015, 1260490, 1530595, 1948030, 2142833, 3061190, 4285666, 10714165, 21428330]

約数ペア:

[(1, 21428330), (2, 10714165), (5, 4285666), (7, 3061190), (10, 2142833), (11, 1948030), (14, 1530595), (17, 1260490), (22, 974015), (34, 630245), (35, 612238), (55, 389606), (70, 306119), (77, 278290), (85, 252098), (110, 194803), (119, 180070), (154, 139145), (170, 126049), (187, 114590), (238, 90035), (374, 57295), (385, 55658), (595, 36014), (770, 27829), (935, 22918), (1190, 18007), (1309, 16370), (1637, 13090), (1870, 11459), (2618, 8185), (3274, 6545)]