18872763

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{73}}^1\times {\mathrm{947}}^1$

素因数の和:1043

約数の個数: 32

約数和(自身を含む): 31428096

約数和(自身を除く): 12555333

約数列:

[1, 3, 7, 13, 21, 39, 73, 91, 219, 273, 511, 947, 949, 1533, 2841, 2847, 6629, 6643, 12311, 19887, 19929, 36933, 69131, 86177, 207393, 258531, 483917, 898703, 1451751, 2696109, 6290921, 18872763]

約数ペア:

[(1, 18872763), (3, 6290921), (7, 2696109), (13, 1451751), (21, 898703), (39, 483917), (73, 258531), (91, 207393), (219, 86177), (273, 69131), (511, 36933), (947, 19929), (949, 19887), (1533, 12311), (2841, 6643), (2847, 6629)]