19716015

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^2\times {\mathrm{331}}^1$

素因数の和:388

約数の個数: 48

約数和(自身を含む): 36429696

約数和(自身を除く): 16713681

約数列:

[1, 3, 5, 11, 15, 19, 33, 55, 57, 95, 165, 209, 285, 331, 361, 627, 993, 1045, 1083, 1655, 1805, 3135, 3641, 3971, 4965, 5415, 6289, 10923, 11913, 18205, 18867, 19855, 31445, 54615, 59565, 69179, 94335, 119491, 207537, 345895, 358473, 597455, 1037685, 1314401, 1792365, 3943203, 6572005, 19716015]

約数ペア:

[(1, 19716015), (3, 6572005), (5, 3943203), (11, 1792365), (15, 1314401), (19, 1037685), (33, 597455), (55, 358473), (57, 345895), (95, 207537), (165, 119491), (209, 94335), (285, 69179), (331, 59565), (361, 54615), (627, 31445), (993, 19855), (1045, 18867), (1083, 18205), (1655, 11913), (1805, 10923), (3135, 6289), (3641, 5415), (3971, 4965)]