21919100

素因数分解:

$2^2\times 5^2\times 7^1\times {\mathrm{173}}^1\times {\mathrm{181}}^1$

素因数の和:375

約数の個数: 72

約数和(自身を含む): 54975648

約数和(自身を除く): 33056548

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 25, 28, 35, 50, 70, 100, 140, 173, 175, 181, 346, 350, 362, 692, 700, 724, 865, 905, 1211, 1267, 1730, 1810, 2422, 2534, 3460, 3620, 4325, 4525, 4844, 5068, 6055, 6335, 8650, 9050, 12110, 12670, 17300, 18100, 24220, 25340, 30275, 31313, 31675, 60550, 62626, 63350, 121100, 125252, 126700, 156565, 219191, 313130, 438382, 626260, 782825, 876764, 1095955, 1565650, 2191910, 3131300, 4383820, 5479775, 10959550, 21919100]

約数ペア:

[(1, 21919100), (2, 10959550), (4, 5479775), (5, 4383820), (7, 3131300), (10, 2191910), (14, 1565650), (20, 1095955), (25, 876764), (28, 782825), (35, 626260), (50, 438382), (70, 313130), (100, 219191), (140, 156565), (173, 126700), (175, 125252), (181, 121100), (346, 63350), (350, 62626), (362, 60550), (692, 31675), (700, 31313), (724, 30275), (865, 25340), (905, 24220), (1211, 18100), (1267, 17300), (1730, 12670), (1810, 12110), (2422, 9050), (2534, 8650), (3460, 6335), (3620, 6055), (4325, 5068), (4525, 4844)]