221880904

素因数分解:

$2^3\times 7^1\times {\mathrm{97}}^1\times {\mathrm{40847}}^1$

素因数の和:40957

約数の個数: 32

約数和(自身を含む): 480372480

約数和(自身を除く): 258491576

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 97, 194, 388, 679, 776, 1358, 2716, 5432, 40847, 81694, 163388, 285929, 326776, 571858, 1143716, 2287432, 3962159, 7924318, 15848636, 27735113, 31697272, 55470226, 110940452, 221880904]

約数ペア:

[(1, 221880904), (2, 110940452), (4, 55470226), (7, 31697272), (8, 27735113), (14, 15848636), (28, 7924318), (56, 3962159), (97, 2287432), (194, 1143716), (388, 571858), (679, 326776), (776, 285929), (1358, 163388), (2716, 81694), (5432, 40847)]