219929997

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{83}}^1\times {\mathrm{229}}^1$

素因数の和:370

約数の個数: 64

約数和(自身を含む): 370944000

約数和(自身を除く): 151014003

約数列:

[1, 3, 7, 19, 21, 29, 57, 83, 87, 133, 203, 229, 249, 399, 551, 581, 609, 687, 1577, 1603, 1653, 1743, 2407, 3857, 4351, 4731, 4809, 6641, 7221, 11039, 11571, 13053, 16849, 19007, 19923, 30457, 33117, 45733, 46487, 50547, 57021, 91371, 126179, 133049, 137199, 139461, 320131, 361133, 378537, 399147, 551203, 883253, 960393, 1083399, 1653609, 2527931, 2649759, 3858421, 7583793, 10472857, 11575263, 31418571, 73309999, 219929997]

約数ペア:

[(1, 219929997), (3, 73309999), (7, 31418571), (19, 11575263), (21, 10472857), (29, 7583793), (57, 3858421), (83, 2649759), (87, 2527931), (133, 1653609), (203, 1083399), (229, 960393), (249, 883253), (399, 551203), (551, 399147), (581, 378537), (609, 361133), (687, 320131), (1577, 139461), (1603, 137199), (1653, 133049), (1743, 126179), (2407, 91371), (3857, 57021), (4351, 50547), (4731, 46487), (4809, 45733), (6641, 33117), (7221, 30457), (11039, 19923), (11571, 19007), (13053, 16849)]