20559344

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{97}}^1\times {\mathrm{1019}}^1$

素因数の和:1137

約数の個数: 40

約数和(自身を含む): 43382640

約数和(自身を除く): 22823296

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 97, 104, 194, 208, 388, 776, 1019, 1261, 1552, 2038, 2522, 4076, 5044, 8152, 10088, 13247, 16304, 20176, 26494, 52988, 98843, 105976, 197686, 211952, 395372, 790744, 1284959, 1581488, 2569918, 5139836, 10279672, 20559344]

約数ペア:

[(1, 20559344), (2, 10279672), (4, 5139836), (8, 2569918), (13, 1581488), (16, 1284959), (26, 790744), (52, 395372), (97, 211952), (104, 197686), (194, 105976), (208, 98843), (388, 52988), (776, 26494), (1019, 20176), (1261, 16304), (1552, 13247), (2038, 10088), (2522, 8152), (4076, 5044)]