21700014

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{383}}^1$

素因数の和:485

約数の個数: 64

約数和(自身を含む): 53084160

約数和(自身を除く): 31384146

約数列:

[1, 2, 3, 6, 7, 14, 19, 21, 38, 42, 57, 71, 114, 133, 142, 213, 266, 383, 399, 426, 497, 766, 798, 994, 1149, 1349, 1491, 2298, 2681, 2698, 2982, 4047, 5362, 7277, 8043, 8094, 9443, 14554, 16086, 18886, 21831, 27193, 28329, 43662, 50939, 54386, 56658, 81579, 101878, 152817, 163158, 190351, 305634, 380702, 516667, 571053, 1033334, 1142106, 1550001, 3100002, 3616669, 7233338, 10850007, 21700014]

約数ペア:

[(1, 21700014), (2, 10850007), (3, 7233338), (6, 3616669), (7, 3100002), (14, 1550001), (19, 1142106), (21, 1033334), (38, 571053), (42, 516667), (57, 380702), (71, 305634), (114, 190351), (133, 163158), (142, 152817), (213, 101878), (266, 81579), (383, 56658), (399, 54386), (426, 50939), (497, 43662), (766, 28329), (798, 27193), (994, 21831), (1149, 18886), (1349, 16086), (1491, 14554), (2298, 9443), (2681, 8094), (2698, 8043), (2982, 7277), (4047, 5362)]