654381

素因数分解:

$3^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{47}}^1$

素因数の和:90

約数の個数: 48

約数和(自身を含む): 1257984

約数和(自身を除く): 603603

約数列:

[1, 3, 7, 9, 13, 17, 21, 39, 47, 51, 63, 91, 117, 119, 141, 153, 221, 273, 329, 357, 423, 611, 663, 799, 819, 987, 1071, 1547, 1833, 1989, 2397, 2961, 4277, 4641, 5499, 5593, 7191, 10387, 12831, 13923, 16779, 31161, 38493, 50337, 72709, 93483, 218127, 654381]

約数ペア:

[(1, 654381), (3, 218127), (7, 93483), (9, 72709), (13, 50337), (17, 38493), (21, 31161), (39, 16779), (47, 13923), (51, 12831), (63, 10387), (91, 7191), (117, 5593), (119, 5499), (141, 4641), (153, 4277), (221, 2961), (273, 2397), (329, 1989), (357, 1833), (423, 1547), (611, 1071), (663, 987), (799, 819)]