2778867

素因数分解:

$3^4\times 7^1\times {\mathrm{13}}^2\times {\mathrm{29}}^1$

素因数の和:74

約数の個数: 60

約数和(自身を含む): 5314320

約数和(自身を除く): 2535453

約数列:

[1, 3, 7, 9, 13, 21, 27, 29, 39, 63, 81, 87, 91, 117, 169, 189, 203, 261, 273, 351, 377, 507, 567, 609, 783, 819, 1053, 1131, 1183, 1521, 1827, 2349, 2457, 2639, 3393, 3549, 4563, 4901, 5481, 7371, 7917, 10179, 10647, 13689, 14703, 16443, 23751, 30537, 31941, 34307, 44109, 71253, 95823, 102921, 132327, 213759, 308763, 396981, 926289, 2778867]

約数ペア:

[(1, 2778867), (3, 926289), (7, 396981), (9, 308763), (13, 213759), (21, 132327), (27, 102921), (29, 95823), (39, 71253), (63, 44109), (81, 34307), (87, 31941), (91, 30537), (117, 23751), (169, 16443), (189, 14703), (203, 13689), (261, 10647), (273, 10179), (351, 7917), (377, 7371), (507, 5481), (567, 4901), (609, 4563), (783, 3549), (819, 3393), (1053, 2639), (1131, 2457), (1183, 2349), (1521, 1827)]