19361979

素因数分解:

$3^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{503}}^1$

素因数の和:576

約数の個数: 48

約数和(自身を含む): 35223552

約数和(自身を除く): 15861573

約数列:

[1, 3, 7, 9, 13, 21, 39, 47, 63, 91, 117, 141, 273, 329, 423, 503, 611, 819, 987, 1509, 1833, 2961, 3521, 4277, 4527, 5499, 6539, 10563, 12831, 19617, 23641, 31689, 38493, 45773, 58851, 70923, 137319, 165487, 212769, 307333, 411957, 496461, 921999, 1489383, 2151331, 2765997, 6453993, 19361979]

約数ペア:

[(1, 19361979), (3, 6453993), (7, 2765997), (9, 2151331), (13, 1489383), (21, 921999), (39, 496461), (47, 411957), (63, 307333), (91, 212769), (117, 165487), (141, 137319), (273, 70923), (329, 58851), (423, 45773), (503, 38493), (611, 31689), (819, 23641), (987, 19617), (1509, 12831), (1833, 10563), (2961, 6539), (3521, 5499), (4277, 4527)]