216221229

素因数分解:

$3^2\times 7^1\times {\mathrm{23}}^1\times {\mathrm{37}}^2\times {\mathrm{109}}^1$

素因数の和:219

約数の個数: 72

約数和(自身を含む): 386305920

約数和(自身を除く): 170084691

約数列:

[1, 3, 7, 9, 21, 23, 37, 63, 69, 109, 111, 161, 207, 259, 327, 333, 483, 763, 777, 851, 981, 1369, 1449, 2289, 2331, 2507, 2553, 4033, 4107, 5957, 6867, 7521, 7659, 9583, 12099, 12321, 17549, 17871, 22563, 28231, 28749, 31487, 36297, 52647, 53613, 84693, 86247, 92759, 94461, 149221, 157941, 220409, 254079, 278277, 283383, 447663, 649313, 661227, 834831, 1044547, 1342989, 1947939, 1983681, 3133641, 3432083, 5843817, 9400923, 10296249, 24024581, 30888747, 72073743, 216221229]

約数ペア:

[(1, 216221229), (3, 72073743), (7, 30888747), (9, 24024581), (21, 10296249), (23, 9400923), (37, 5843817), (63, 3432083), (69, 3133641), (109, 1983681), (111, 1947939), (161, 1342989), (207, 1044547), (259, 834831), (327, 661227), (333, 649313), (483, 447663), (763, 283383), (777, 278277), (851, 254079), (981, 220409), (1369, 157941), (1449, 149221), (2289, 94461), (2331, 92759), (2507, 86247), (2553, 84693), (4033, 53613), (4107, 52647), (5957, 36297), (6867, 31487), (7521, 28749), (7659, 28231), (9583, 22563), (12099, 17871), (12321, 17549)]