20778880311

素因数分解:

$3^2\times 7^1\times {\mathrm{167}}^1\times {\mathrm{349}}^1\times {\mathrm{5659}}^1$

素因数の和:6188

約数の個数: 48

約数和(自身を含む): 34612032000

約数和(自身を除く): 13833151689

約数列:

[1, 3, 7, 9, 21, 63, 167, 349, 501, 1047, 1169, 1503, 2443, 3141, 3507, 5659, 7329, 10521, 16977, 21987, 39613, 50931, 58283, 118839, 174849, 356517, 407981, 524547, 945053, 1223943, 1974991, 2835159, 3671829, 5924973, 6615371, 8505477, 13824937, 17774919, 19846113, 41474811, 59538339, 124424433, 329823497, 989470491, 2308764479, 2968411473, 6926293437, 20778880311]

約数ペア:

[(1, 20778880311), (3, 6926293437), (7, 2968411473), (9, 2308764479), (21, 989470491), (63, 329823497), (167, 124424433), (349, 59538339), (501, 41474811), (1047, 19846113), (1169, 17774919), (1503, 13824937), (2443, 8505477), (3141, 6615371), (3507, 5924973), (5659, 3671829), (7329, 2835159), (10521, 1974991), (16977, 1223943), (21987, 945053), (39613, 524547), (50931, 407981), (58283, 356517), (118839, 174849)]