21293910

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{137}}^1\times {\mathrm{157}}^1$

素因数の和:318

約数の個数: 96

約数和(自身を含む): 61225632

約数和(自身を除く): 39931722

約数列:

[1, 2, 3, 5, 6, 9, 10, 11, 15, 18, 22, 30, 33, 45, 55, 66, 90, 99, 110, 137, 157, 165, 198, 274, 314, 330, 411, 471, 495, 685, 785, 822, 942, 990, 1233, 1370, 1413, 1507, 1570, 1727, 2055, 2355, 2466, 2826, 3014, 3454, 4110, 4521, 4710, 5181, 6165, 7065, 7535, 8635, 9042, 10362, 12330, 13563, 14130, 15070, 15543, 17270, 21509, 22605, 25905, 27126, 31086, 43018, 45210, 51810, 64527, 67815, 77715, 107545, 129054, 135630, 155430, 193581, 215090, 236599, 322635, 387162, 473198, 645270, 709797, 967905, 1182995, 1419594, 1935810, 2129391, 2365990, 3548985, 4258782, 7097970, 10646955, 21293910]

約数ペア:

[(1, 21293910), (2, 10646955), (3, 7097970), (5, 4258782), (6, 3548985), (9, 2365990), (10, 2129391), (11, 1935810), (15, 1419594), (18, 1182995), (22, 967905), (30, 709797), (33, 645270), (45, 473198), (55, 387162), (66, 322635), (90, 236599), (99, 215090), (110, 193581), (137, 155430), (157, 135630), (165, 129054), (198, 107545), (274, 77715), (314, 67815), (330, 64527), (411, 51810), (471, 45210), (495, 43018), (685, 31086), (785, 27126), (822, 25905), (942, 22605), (990, 21509), (1233, 17270), (1370, 15543), (1413, 15070), (1507, 14130), (1570, 13563), (1727, 12330), (2055, 10362), (2355, 9042), (2466, 8635), (2826, 7535), (3014, 7065), (3454, 6165), (4110, 5181), (4521, 4710)]