21603141

素因数分解:

$3^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{877}}^1$

素因数の和:930

約数の個数: 48

約数和(自身を含む): 39446784

約数和(自身を除く): 17843643

約数列:

[1, 3, 7, 9, 17, 21, 23, 51, 63, 69, 119, 153, 161, 207, 357, 391, 483, 877, 1071, 1173, 1449, 2631, 2737, 3519, 6139, 7893, 8211, 14909, 18417, 20171, 24633, 44727, 55251, 60513, 104363, 134181, 141197, 181539, 313089, 342907, 423591, 939267, 1028721, 1270773, 2400349, 3086163, 7201047, 21603141]

約数ペア:

[(1, 21603141), (3, 7201047), (7, 3086163), (9, 2400349), (17, 1270773), (21, 1028721), (23, 939267), (51, 423591), (63, 342907), (69, 313089), (119, 181539), (153, 141197), (161, 134181), (207, 104363), (357, 60513), (391, 55251), (483, 44727), (877, 24633), (1071, 20171), (1173, 18417), (1449, 14909), (2631, 8211), (2737, 7893), (3519, 6139)]