221549552

素因数分解:

$2^4\times 7^1\times {\mathrm{97}}^1\times {\mathrm{20393}}^1$

素因数の和:20505

約数の個数: 40

約数和(自身を含む): 495655776

約数和(自身を除く): 274106224

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 97, 112, 194, 388, 679, 776, 1358, 1552, 2716, 5432, 10864, 20393, 40786, 81572, 142751, 163144, 285502, 326288, 571004, 1142008, 1978121, 2284016, 3956242, 7912484, 13846847, 15824968, 27693694, 31649936, 55387388, 110774776, 221549552]

約数ペア:

[(1, 221549552), (2, 110774776), (4, 55387388), (7, 31649936), (8, 27693694), (14, 15824968), (16, 13846847), (28, 7912484), (56, 3956242), (97, 2284016), (112, 1978121), (194, 1142008), (388, 571004), (679, 326288), (776, 285502), (1358, 163144), (1552, 142751), (2716, 81572), (5432, 40786), (10864, 20393)]