19947822

素因数分解:

$2^1\times 3^1\times {\mathrm{53}}^1\times {\mathrm{149}}^1\times {\mathrm{421}}^1$

素因数の和:628

約数の個数: 32

約数和(自身を含む): 41018400

約数和(自身を除く): 21070578

約数列:

[1, 2, 3, 6, 53, 106, 149, 159, 298, 318, 421, 447, 842, 894, 1263, 2526, 7897, 15794, 22313, 23691, 44626, 47382, 62729, 66939, 125458, 133878, 188187, 376374, 3324637, 6649274, 9973911, 19947822]

約数ペア:

[(1, 19947822), (2, 9973911), (3, 6649274), (6, 3324637), (53, 376374), (106, 188187), (149, 133878), (159, 125458), (298, 66939), (318, 62729), (421, 47382), (447, 44626), (842, 23691), (894, 22313), (1263, 15794), (2526, 7897)]