21890204

素因数分解:

$2^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{1789}}^1$

素因数の和:1842

約数の個数: 48

約数和(自身を含む): 48115200

約数和(自身を除く): 26224996

約数列:

[1, 2, 4, 7, 14, 19, 23, 28, 38, 46, 76, 92, 133, 161, 266, 322, 437, 532, 644, 874, 1748, 1789, 3059, 3578, 6118, 7156, 12236, 12523, 25046, 33991, 41147, 50092, 67982, 82294, 135964, 164588, 237937, 288029, 475874, 576058, 781793, 951748, 1152116, 1563586, 3127172, 5472551, 10945102, 21890204]

約数ペア:

[(1, 21890204), (2, 10945102), (4, 5472551), (7, 3127172), (14, 1563586), (19, 1152116), (23, 951748), (28, 781793), (38, 576058), (46, 475874), (76, 288029), (92, 237937), (133, 164588), (161, 135964), (266, 82294), (322, 67982), (437, 50092), (532, 41147), (644, 33991), (874, 25046), (1748, 12523), (1789, 12236), (3059, 7156), (3578, 6118)]