20996868417

素因数分解:

$3^1\times 7^1\times {\mathrm{97}}^1\times {\mathrm{167}}^1\times {\mathrm{61723}}^1$

素因数の和:61997

約数の個数: 32

約数和(自身を含む): 32519165952

約数和(自身を除く): 11522297535

約数列:

[1, 3, 7, 21, 97, 167, 291, 501, 679, 1169, 2037, 3507, 16199, 48597, 61723, 113393, 185169, 340179, 432061, 1296183, 5987131, 10307741, 17961393, 30923223, 41909917, 72154187, 125729751, 216462561, 999850877, 2999552631, 6998956139, 20996868417]

約数ペア:

[(1, 20996868417), (3, 6998956139), (7, 2999552631), (21, 999850877), (97, 216462561), (167, 125729751), (291, 72154187), (501, 41909917), (679, 30923223), (1169, 17961393), (2037, 10307741), (3507, 5987131), (16199, 1296183), (48597, 432061), (61723, 340179), (113393, 185169)]