20630778

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{409}}^1\times {\mathrm{1201}}^1$

素因数の和:1622

約数の個数: 32

約数和(自身を含む): 47310720

約数和(自身を除く): 26679942

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 409, 818, 1201, 1227, 2402, 2454, 2863, 3603, 5726, 7206, 8407, 8589, 16814, 17178, 25221, 50442, 491209, 982418, 1473627, 2947254, 3438463, 6876926, 10315389, 20630778]

約数ペア:

[(1, 20630778), (2, 10315389), (3, 6876926), (6, 3438463), (7, 2947254), (14, 1473627), (21, 982418), (42, 491209), (409, 50442), (818, 25221), (1201, 17178), (1227, 16814), (2402, 8589), (2454, 8407), (2863, 7206), (3603, 5726)]