28754271

素因数分解:

$3^4\times 7^1\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{83}}^1$

素因数の和:162

約数の個数: 80

約数和(自身を含む): 54641664

約数和(自身を除く): 25887393

約数列:

[1, 3, 7, 9, 13, 21, 27, 39, 47, 63, 81, 83, 91, 117, 141, 189, 249, 273, 329, 351, 423, 567, 581, 611, 747, 819, 987, 1053, 1079, 1269, 1743, 1833, 2241, 2457, 2961, 3237, 3807, 3901, 4277, 5229, 5499, 6723, 7371, 7553, 8883, 9711, 11703, 12831, 15687, 16497, 22659, 26649, 27307, 29133, 35109, 38493, 47061, 49491, 50713, 67977, 81921, 87399, 105327, 115479, 152139, 203931, 245763, 315981, 346437, 354991, 456417, 611793, 737289, 1064973, 1369251, 2211867, 3194919, 4107753, 9584757, 28754271]

約数ペア:

[(1, 28754271), (3, 9584757), (7, 4107753), (9, 3194919), (13, 2211867), (21, 1369251), (27, 1064973), (39, 737289), (47, 611793), (63, 456417), (81, 354991), (83, 346437), (91, 315981), (117, 245763), (141, 203931), (189, 152139), (249, 115479), (273, 105327), (329, 87399), (351, 81921), (423, 67977), (567, 50713), (581, 49491), (611, 47061), (747, 38493), (819, 35109), (987, 29133), (1053, 27307), (1079, 26649), (1269, 22659), (1743, 16497), (1833, 15687), (2241, 12831), (2457, 11703), (2961, 9711), (3237, 8883), (3807, 7553), (3901, 7371), (4277, 6723), (5229, 5499)]