21963460

素因数分解:

$2^2\times 5^1\times {\mathrm{83}}^1\times {\mathrm{101}}^1\times {\mathrm{131}}^1$

素因数の和:324

約数の個数: 48

約数和(自身を含む): 47500992

約数和(自身を除く): 25537532

約数列:

[1, 2, 4, 5, 10, 20, 83, 101, 131, 166, 202, 262, 332, 404, 415, 505, 524, 655, 830, 1010, 1310, 1660, 2020, 2620, 8383, 10873, 13231, 16766, 21746, 26462, 33532, 41915, 43492, 52924, 54365, 66155, 83830, 108730, 132310, 167660, 217460, 264620, 1098173, 2196346, 4392692, 5490865, 10981730, 21963460]

約数ペア:

[(1, 21963460), (2, 10981730), (4, 5490865), (5, 4392692), (10, 2196346), (20, 1098173), (83, 264620), (101, 217460), (131, 167660), (166, 132310), (202, 108730), (262, 83830), (332, 66155), (404, 54365), (415, 52924), (505, 43492), (524, 41915), (655, 33532), (830, 26462), (1010, 21746), (1310, 16766), (1660, 13231), (2020, 10873), (2620, 8383)]