19194890

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{433}}^1$

素因数の和:495

約数の個数: 64

約数和(自身を含む): 41997312

約数和(自身を除く): 22802422

約数列:

[1, 2, 5, 10, 11, 13, 22, 26, 31, 55, 62, 65, 110, 130, 143, 155, 286, 310, 341, 403, 433, 682, 715, 806, 866, 1430, 1705, 2015, 2165, 3410, 4030, 4330, 4433, 4763, 5629, 8866, 9526, 11258, 13423, 22165, 23815, 26846, 28145, 44330, 47630, 56290, 61919, 67115, 123838, 134230, 147653, 174499, 295306, 309595, 348998, 619190, 738265, 872495, 1476530, 1744990, 1919489, 3838978, 9597445, 19194890]

約数ペア:

[(1, 19194890), (2, 9597445), (5, 3838978), (10, 1919489), (11, 1744990), (13, 1476530), (22, 872495), (26, 738265), (31, 619190), (55, 348998), (62, 309595), (65, 295306), (110, 174499), (130, 147653), (143, 134230), (155, 123838), (286, 67115), (310, 61919), (341, 56290), (403, 47630), (433, 44330), (682, 28145), (715, 26846), (806, 23815), (866, 22165), (1430, 13423), (1705, 11258), (2015, 9526), (2165, 8866), (3410, 5629), (4030, 4763), (4330, 4433)]