20888974659

素因数分解:

$3^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{1949}}^1\times {\mathrm{17599}}^1$

素因数の和:19587

約数の個数: 32

約数和(自身を含む): 32947200000

約数和(自身を除く): 12058225341

約数列:

[1, 3, 7, 21, 29, 87, 203, 609, 1949, 5847, 13643, 17599, 40929, 52797, 56521, 123193, 169563, 369579, 395647, 510371, 1186941, 1531113, 3572597, 10717791, 34300451, 102901353, 240103157, 720309471, 994713079, 2984139237, 6962991553, 20888974659]

約数ペア:

[(1, 20888974659), (3, 6962991553), (7, 2984139237), (21, 994713079), (29, 720309471), (87, 240103157), (203, 102901353), (609, 34300451), (1949, 10717791), (5847, 3572597), (13643, 1531113), (17599, 1186941), (40929, 510371), (52797, 395647), (56521, 369579), (123193, 169563)]