30678921

素因数分解:

$3^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{797}}^1$

素因数の和:870

約数の個数: 48

約数和(自身を含む): 55770624

約数和(自身を除く): 25091703

約数列:

[1, 3, 7, 9, 13, 21, 39, 47, 63, 91, 117, 141, 273, 329, 423, 611, 797, 819, 987, 1833, 2391, 2961, 4277, 5499, 5579, 7173, 10361, 12831, 16737, 31083, 37459, 38493, 50211, 72527, 93249, 112377, 217581, 262213, 337131, 486967, 652743, 786639, 1460901, 2359917, 3408769, 4382703, 10226307, 30678921]

約数ペア:

[(1, 30678921), (3, 10226307), (7, 4382703), (9, 3408769), (13, 2359917), (21, 1460901), (39, 786639), (47, 652743), (63, 486967), (91, 337131), (117, 262213), (141, 217581), (273, 112377), (329, 93249), (423, 72527), (611, 50211), (797, 38493), (819, 37459), (987, 31083), (1833, 16737), (2391, 12831), (2961, 10361), (4277, 7173), (5499, 5579)]