71353191

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{67}}^1\times {\mathrm{83}}^1$

素因数の和:220

約数の個数: 64

約数和(自身を含む): 122830848

約数和(自身を除く): 51477657

約数列:

[1, 3, 7, 13, 21, 39, 47, 67, 83, 91, 141, 201, 249, 273, 329, 469, 581, 611, 871, 987, 1079, 1407, 1743, 1833, 2613, 3149, 3237, 3901, 4277, 5561, 6097, 7553, 9447, 11703, 12831, 16683, 18291, 22043, 22659, 27307, 38927, 40937, 50713, 66129, 72293, 81921, 116781, 122811, 152139, 216879, 261367, 286559, 354991, 506051, 784101, 859677, 1064973, 1518153, 1829569, 3397771, 5488707, 10193313, 23784397, 71353191]

約数ペア:

[(1, 71353191), (3, 23784397), (7, 10193313), (13, 5488707), (21, 3397771), (39, 1829569), (47, 1518153), (67, 1064973), (83, 859677), (91, 784101), (141, 506051), (201, 354991), (249, 286559), (273, 261367), (329, 216879), (469, 152139), (581, 122811), (611, 116781), (871, 81921), (987, 72293), (1079, 66129), (1407, 50713), (1743, 40937), (1833, 38927), (2613, 27307), (3149, 22659), (3237, 22043), (3901, 18291), (4277, 16683), (5561, 12831), (6097, 11703), (7553, 9447)]