21450758

素因数分解:

$2^1\times 7^1\times {\mathrm{73}}^1\times {\mathrm{139}}^1\times {\mathrm{151}}^1$

素因数の和:372

約数の個数: 32

約数和(自身を含む): 37793280

約数和(自身を除く): 16342522

約数列:

[1, 2, 7, 14, 73, 139, 146, 151, 278, 302, 511, 973, 1022, 1057, 1946, 2114, 10147, 11023, 20294, 20989, 22046, 41978, 71029, 77161, 142058, 146923, 154322, 293846, 1532197, 3064394, 10725379, 21450758]

約数ペア:

[(1, 21450758), (2, 10725379), (7, 3064394), (14, 1532197), (73, 293846), (139, 154322), (146, 146923), (151, 142058), (278, 77161), (302, 71029), (511, 41978), (973, 22046), (1022, 20989), (1057, 20294), (1946, 11023), (2114, 10147)]