16994418

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{71}}^1\times {\mathrm{139}}^1$

素因数の和:263

約数の個数: 64

約数和(自身を含む): 40642560

約数和(自身を除く): 23648142

約数列:

[1, 2, 3, 6, 7, 14, 21, 41, 42, 71, 82, 123, 139, 142, 213, 246, 278, 287, 417, 426, 497, 574, 834, 861, 973, 994, 1491, 1722, 1946, 2911, 2919, 2982, 5699, 5822, 5838, 8733, 9869, 11398, 17097, 17466, 19738, 20377, 29607, 34194, 39893, 40754, 59214, 61131, 69083, 79786, 119679, 122262, 138166, 207249, 239358, 404629, 414498, 809258, 1213887, 2427774, 2832403, 5664806, 8497209, 16994418]

約数ペア:

[(1, 16994418), (2, 8497209), (3, 5664806), (6, 2832403), (7, 2427774), (14, 1213887), (21, 809258), (41, 414498), (42, 404629), (71, 239358), (82, 207249), (123, 138166), (139, 122262), (142, 119679), (213, 79786), (246, 69083), (278, 61131), (287, 59214), (417, 40754), (426, 39893), (497, 34194), (574, 29607), (834, 20377), (861, 19738), (973, 17466), (994, 17097), (1491, 11398), (1722, 9869), (1946, 8733), (2911, 5838), (2919, 5822), (2982, 5699)]