21154278201

素因数分解:

$3^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{1120519}}^1$

素因数の和:1120589

約数の個数: 32

約数和(自身を含む): 34422374400

約数和(自身を除く): 13268096199

約数列:

[1, 3, 7, 21, 29, 31, 87, 93, 203, 217, 609, 651, 899, 2697, 6293, 18879, 1120519, 3361557, 7843633, 23530899, 32495051, 34736089, 97485153, 104208267, 227465357, 243152623, 682396071, 729457869, 1007346581, 3022039743, 7051426067, 21154278201]

約数ペア:

[(1, 21154278201), (3, 7051426067), (7, 3022039743), (21, 1007346581), (29, 729457869), (31, 682396071), (87, 243152623), (93, 227465357), (203, 104208267), (217, 97485153), (609, 34736089), (651, 32495051), (899, 23530899), (2697, 7843633), (6293, 3361557), (18879, 1120519)]