1947945531

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^2\times {\mathrm{263}}^1\times {\mathrm{977}}^1$

素因数の和:1288

約数の個数: 48

約数和(自身を含む): 3147876864

約数和(自身を除く): 1199931333

約数列:

[1, 3, 7, 19, 21, 57, 133, 263, 361, 399, 789, 977, 1083, 1841, 2527, 2931, 4997, 5523, 6839, 7581, 14991, 18563, 20517, 34979, 55689, 94943, 104937, 129941, 256951, 284829, 352697, 389823, 664601, 770853, 1058091, 1798657, 1993803, 2468879, 4882069, 5395971, 7406637, 14646207, 34174483, 92759311, 102523449, 278277933, 649315177, 1947945531]

約数ペア:

[(1, 1947945531), (3, 649315177), (7, 278277933), (19, 102523449), (21, 92759311), (57, 34174483), (133, 14646207), (263, 7406637), (361, 5395971), (399, 4882069), (789, 2468879), (977, 1993803), (1083, 1798657), (1841, 1058091), (2527, 770853), (2931, 664601), (4997, 389823), (5523, 352697), (6839, 284829), (7581, 256951), (14991, 129941), (18563, 104937), (20517, 94943), (34979, 55689)]