21713202

素因数分解:

$2^1\times 3^2\times 7^1\times {\mathrm{389}}^1\times {\mathrm{443}}^1$

素因数の和:847

約数の個数: 48

約数和(自身を含む): 54025920

約数和(自身を除く): 32312718

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 42, 63, 126, 389, 443, 778, 886, 1167, 1329, 2334, 2658, 2723, 3101, 3501, 3987, 5446, 6202, 7002, 7974, 8169, 9303, 16338, 18606, 24507, 27909, 49014, 55818, 172327, 344654, 516981, 1033962, 1206289, 1550943, 2412578, 3101886, 3618867, 7237734, 10856601, 21713202]

約数ペア:

[(1, 21713202), (2, 10856601), (3, 7237734), (6, 3618867), (7, 3101886), (9, 2412578), (14, 1550943), (18, 1206289), (21, 1033962), (42, 516981), (63, 344654), (126, 172327), (389, 55818), (443, 49014), (778, 27909), (886, 24507), (1167, 18606), (1329, 16338), (2334, 9303), (2658, 8169), (2723, 7974), (3101, 7002), (3501, 6202), (3987, 5446)]