21200302116

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{431}}^1\times {\mathrm{195193}}^1$

素因数の和:195641

約数の個数: 72

約数和(自身を含む): 61387732224

約数和(自身を除く): 40187430108

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 36, 42, 63, 84, 126, 252, 431, 862, 1293, 1724, 2586, 3017, 3879, 5172, 6034, 7758, 9051, 12068, 15516, 18102, 27153, 36204, 54306, 108612, 195193, 390386, 585579, 780772, 1171158, 1366351, 1756737, 2342316, 2732702, 3513474, 4099053, 5465404, 7026948, 8198106, 12297159, 16396212, 24594318, 49188636, 84128183, 168256366, 252384549, 336512732, 504769098, 588897281, 757153647, 1009538196, 1177794562, 1514307294, 1766691843, 2355589124, 3028614588, 3533383686, 5300075529, 7066767372, 10600151058, 21200302116]

約数ペア:

[(1, 21200302116), (2, 10600151058), (3, 7066767372), (4, 5300075529), (6, 3533383686), (7, 3028614588), (9, 2355589124), (12, 1766691843), (14, 1514307294), (18, 1177794562), (21, 1009538196), (28, 757153647), (36, 588897281), (42, 504769098), (63, 336512732), (84, 252384549), (126, 168256366), (252, 84128183), (431, 49188636), (862, 24594318), (1293, 16396212), (1724, 12297159), (2586, 8198106), (3017, 7026948), (3879, 5465404), (5172, 4099053), (6034, 3513474), (7758, 2732702), (9051, 2342316), (12068, 1756737), (15516, 1366351), (18102, 1171158), (27153, 780772), (36204, 585579), (54306, 390386), (108612, 195193)]