21318954020

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{11713711}}^1$

素因数の和:11713740

約数の個数: 48

約数和(自身を含む): 55101301248

約数和(自身を除く): 33782347228

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 26, 28, 35, 52, 65, 70, 91, 130, 140, 182, 260, 364, 455, 910, 1820, 11713711, 23427422, 46854844, 58568555, 81995977, 117137110, 152278243, 163991954, 234274220, 304556486, 327983908, 409979885, 609112972, 761391215, 819959770, 1065947701, 1522782430, 1639919540, 2131895402, 3045564860, 4263790804, 5329738505, 10659477010, 21318954020]

約数ペア:

[(1, 21318954020), (2, 10659477010), (4, 5329738505), (5, 4263790804), (7, 3045564860), (10, 2131895402), (13, 1639919540), (14, 1522782430), (20, 1065947701), (26, 819959770), (28, 761391215), (35, 609112972), (52, 409979885), (65, 327983908), (70, 304556486), (91, 234274220), (130, 163991954), (140, 152278243), (182, 117137110), (260, 81995977), (364, 58568555), (455, 46854844), (910, 23427422), (1820, 11713711)]