20823948

素因数分解:

$2^2\times 3^2\times {\mathrm{389}}^1\times {\mathrm{1487}}^1$

素因数の和:1886

約数の個数: 36

約数和(自身を含む): 52809120

約数和(自身を除く): 31985172

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 389, 778, 1167, 1487, 1556, 2334, 2974, 3501, 4461, 4668, 5948, 7002, 8922, 13383, 14004, 17844, 26766, 53532, 578443, 1156886, 1735329, 2313772, 3470658, 5205987, 6941316, 10411974, 20823948]

約数ペア:

[(1, 20823948), (2, 10411974), (3, 6941316), (4, 5205987), (6, 3470658), (9, 2313772), (12, 1735329), (18, 1156886), (36, 578443), (389, 53532), (778, 26766), (1167, 17844), (1487, 14004), (1556, 13383), (2334, 8922), (2974, 7002), (3501, 5948), (4461, 4668)]