1221538899

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{229}}^1\times {\mathrm{461}}^1$

素因数の和:748

約数の個数: 64

約数和(自身を含む): 2040192000

約数和(自身を除く): 818653101

約数列:

[1, 3, 7, 19, 21, 29, 57, 87, 133, 203, 229, 399, 461, 551, 609, 687, 1383, 1603, 1653, 3227, 3857, 4351, 4809, 6641, 8759, 9681, 11571, 13053, 13369, 19923, 26277, 30457, 40107, 46487, 61313, 91371, 93583, 105569, 126179, 139461, 183939, 254011, 280749, 316707, 378537, 738983, 762033, 883253, 1778077, 2005811, 2216949, 2649759, 3061501, 5334231, 6017433, 9184503, 14040677, 21430507, 42122031, 58168519, 64291521, 174505557, 407179633, 1221538899]

約数ペア:

[(1, 1221538899), (3, 407179633), (7, 174505557), (19, 64291521), (21, 58168519), (29, 42122031), (57, 21430507), (87, 14040677), (133, 9184503), (203, 6017433), (229, 5334231), (399, 3061501), (461, 2649759), (551, 2216949), (609, 2005811), (687, 1778077), (1383, 883253), (1603, 762033), (1653, 738983), (3227, 378537), (3857, 316707), (4351, 280749), (4809, 254011), (6641, 183939), (8759, 139461), (9681, 126179), (11571, 105569), (13053, 93583), (13369, 91371), (19923, 61313), (26277, 46487), (30457, 40107)]