1721307028

素因数分解:

$2^2\times 7^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{61}}^1\times {\mathrm{1019}}^1$

素因数の和:1157

約数の個数: 96

約数和(自身を含む): 3739760640

約数和(自身を除く): 2018453612

約数列:

[1, 2, 4, 7, 14, 23, 28, 43, 46, 61, 86, 92, 122, 161, 172, 244, 301, 322, 427, 602, 644, 854, 989, 1019, 1204, 1403, 1708, 1978, 2038, 2623, 2806, 3956, 4076, 5246, 5612, 6923, 7133, 9821, 10492, 13846, 14266, 18361, 19642, 23437, 27692, 28532, 36722, 39284, 43817, 46874, 60329, 62159, 73444, 87634, 93748, 120658, 124318, 164059, 175268, 241316, 248636, 306719, 328118, 422303, 435113, 613438, 656236, 844606, 870226, 1007791, 1226876, 1429657, 1689212, 1740452, 2015582, 2672837, 2859314, 4031164, 5345674, 5718628, 7054537, 10007599, 10691348, 14109074, 18709859, 20015198, 28218148, 37419718, 40030396, 61475251, 74839436, 122950502, 245901004, 430326757, 860653514, 1721307028]

約数ペア:

[(1, 1721307028), (2, 860653514), (4, 430326757), (7, 245901004), (14, 122950502), (23, 74839436), (28, 61475251), (43, 40030396), (46, 37419718), (61, 28218148), (86, 20015198), (92, 18709859), (122, 14109074), (161, 10691348), (172, 10007599), (244, 7054537), (301, 5718628), (322, 5345674), (427, 4031164), (602, 2859314), (644, 2672837), (854, 2015582), (989, 1740452), (1019, 1689212), (1204, 1429657), (1403, 1226876), (1708, 1007791), (1978, 870226), (2038, 844606), (2623, 656236), (2806, 613438), (3956, 435113), (4076, 422303), (5246, 328118), (5612, 306719), (6923, 248636), (7133, 241316), (9821, 175268), (10492, 164059), (13846, 124318), (14266, 120658), (18361, 93748), (19642, 87634), (23437, 73444), (27692, 62159), (28532, 60329), (36722, 46874), (39284, 43817)]