221701648

素因数分解:

$2^4\times 7^1\times {\mathrm{97}}^1\times {\mathrm{20407}}^1$

素因数の和:20519

約数の個数: 40

約数和(自身を含む): 495996032

約数和(自身を除く): 274294384

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 97, 112, 194, 388, 679, 776, 1358, 1552, 2716, 5432, 10864, 20407, 40814, 81628, 142849, 163256, 285698, 326512, 571396, 1142792, 1979479, 2285584, 3958958, 7917916, 13856353, 15835832, 27712706, 31671664, 55425412, 110850824, 221701648]

約数ペア:

[(1, 221701648), (2, 110850824), (4, 55425412), (7, 31671664), (8, 27712706), (14, 15835832), (16, 13856353), (28, 7917916), (56, 3958958), (97, 2285584), (112, 1979479), (194, 1142792), (388, 571396), (679, 326512), (776, 285698), (1358, 163256), (1552, 142849), (2716, 81628), (5432, 40814), (10864, 20407)]