20417754

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{71}}^1\times {\mathrm{167}}^1$

素因数の和:291

約数の個数: 64

約数和(自身を含む): 48771072

約数和(自身を除く): 28353318

約数列:

[1, 2, 3, 6, 7, 14, 21, 41, 42, 71, 82, 123, 142, 167, 213, 246, 287, 334, 426, 497, 501, 574, 861, 994, 1002, 1169, 1491, 1722, 2338, 2911, 2982, 3507, 5822, 6847, 7014, 8733, 11857, 13694, 17466, 20377, 20541, 23714, 35571, 40754, 41082, 47929, 61131, 71142, 82999, 95858, 122262, 143787, 165998, 248997, 287574, 486137, 497994, 972274, 1458411, 2916822, 3402959, 6805918, 10208877, 20417754]

約数ペア:

[(1, 20417754), (2, 10208877), (3, 6805918), (6, 3402959), (7, 2916822), (14, 1458411), (21, 972274), (41, 497994), (42, 486137), (71, 287574), (82, 248997), (123, 165998), (142, 143787), (167, 122262), (213, 95858), (246, 82999), (287, 71142), (334, 61131), (426, 47929), (497, 41082), (501, 40754), (574, 35571), (861, 23714), (994, 20541), (1002, 20377), (1169, 17466), (1491, 13694), (1722, 11857), (2338, 8733), (2911, 7014), (2982, 6847), (3507, 5822)]