20971744

素因数分解:

$2^5\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{2029}}^1$

素因数の和:2075

約数の個数: 48

約数和(自身を含む): 46040400

約数和(自身を除く): 25068656

約数列:

[1, 2, 4, 8, 16, 17, 19, 32, 34, 38, 68, 76, 136, 152, 272, 304, 323, 544, 608, 646, 1292, 2029, 2584, 4058, 5168, 8116, 10336, 16232, 32464, 34493, 38551, 64928, 68986, 77102, 137972, 154204, 275944, 308408, 551888, 616816, 655367, 1103776, 1233632, 1310734, 2621468, 5242936, 10485872, 20971744]

約数ペア:

[(1, 20971744), (2, 10485872), (4, 5242936), (8, 2621468), (16, 1310734), (17, 1233632), (19, 1103776), (32, 655367), (34, 616816), (38, 551888), (68, 308408), (76, 275944), (136, 154204), (152, 137972), (272, 77102), (304, 68986), (323, 64928), (544, 38551), (608, 34493), (646, 32464), (1292, 16232), (2029, 10336), (2584, 8116), (4058, 5168)]