20987362

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{59}}^1$

素因数の和:151

約数の個数: 64

約数和(自身を含む): 39398400

約数和(自身を除く): 18411038

約数列:

[1, 2, 11, 19, 22, 23, 37, 38, 46, 59, 74, 118, 209, 253, 407, 418, 437, 506, 649, 703, 814, 851, 874, 1121, 1298, 1357, 1406, 1702, 2183, 2242, 2714, 4366, 4807, 7733, 9361, 9614, 12331, 14927, 15466, 16169, 18722, 24013, 24662, 25783, 29854, 32338, 41477, 48026, 50209, 51566, 82954, 100418, 177859, 283613, 355718, 456247, 552299, 567226, 912494, 953971, 1104598, 1907942, 10493681, 20987362]

約数ペア:

[(1, 20987362), (2, 10493681), (11, 1907942), (19, 1104598), (22, 953971), (23, 912494), (37, 567226), (38, 552299), (46, 456247), (59, 355718), (74, 283613), (118, 177859), (209, 100418), (253, 82954), (407, 51566), (418, 50209), (437, 48026), (506, 41477), (649, 32338), (703, 29854), (814, 25783), (851, 24662), (874, 24013), (1121, 18722), (1298, 16169), (1357, 15466), (1406, 14927), (1702, 12331), (2183, 9614), (2242, 9361), (2714, 7733), (4366, 4807)]