21136374

素因数分解:

$2^1\times 3^2\times 7^1\times {\mathrm{271}}^1\times {\mathrm{619}}^1$

素因数の和:905

約数の個数: 48

約数和(自身を含む): 52615680

約数和(自身を除く): 31479306

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 42, 63, 126, 271, 542, 619, 813, 1238, 1626, 1857, 1897, 2439, 3714, 3794, 4333, 4878, 5571, 5691, 8666, 11142, 11382, 12999, 17073, 25998, 34146, 38997, 77994, 167749, 335498, 503247, 1006494, 1174243, 1509741, 2348486, 3019482, 3522729, 7045458, 10568187, 21136374]

約数ペア:

[(1, 21136374), (2, 10568187), (3, 7045458), (6, 3522729), (7, 3019482), (9, 2348486), (14, 1509741), (18, 1174243), (21, 1006494), (42, 503247), (63, 335498), (126, 167749), (271, 77994), (542, 38997), (619, 34146), (813, 25998), (1238, 17073), (1626, 12999), (1857, 11382), (1897, 11142), (2439, 8666), (3714, 5691), (3794, 5571), (4333, 4878)]