20178651906

素因数分解:

$2^1\times 3^3\times 7^1\times {\mathrm{149}}^1\times {\mathrm{358273}}^1$

素因数の和:358440

約数の個数: 64

約数和(自身を含む): 51591456000

約数和(自身を除く): 31412804094

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 27, 42, 54, 63, 126, 149, 189, 298, 378, 447, 894, 1043, 1341, 2086, 2682, 3129, 4023, 6258, 8046, 9387, 18774, 28161, 56322, 358273, 716546, 1074819, 2149638, 2507911, 3224457, 5015822, 6448914, 7523733, 9673371, 15047466, 19346742, 22571199, 45142398, 53382677, 67713597, 106765354, 135427194, 160148031, 320296062, 373678739, 480444093, 747357478, 960888186, 1121036217, 1441332279, 2242072434, 2882664558, 3363108651, 6726217302, 10089325953, 20178651906]

約数ペア:

[(1, 20178651906), (2, 10089325953), (3, 6726217302), (6, 3363108651), (7, 2882664558), (9, 2242072434), (14, 1441332279), (18, 1121036217), (21, 960888186), (27, 747357478), (42, 480444093), (54, 373678739), (63, 320296062), (126, 160148031), (149, 135427194), (189, 106765354), (298, 67713597), (378, 53382677), (447, 45142398), (894, 22571199), (1043, 19346742), (1341, 15047466), (2086, 9673371), (2682, 7523733), (3129, 6448914), (4023, 5015822), (6258, 3224457), (8046, 2507911), (9387, 2149638), (18774, 1074819), (28161, 716546), (56322, 358273)]