20171901618

素因数分解:

$2^1\times 3^2\times {\mathrm{11}}^1\times {\mathrm{239}}^1\times {\mathrm{439}}^1\times {\mathrm{971}}^1$

素因数の和:1668

約数の個数: 96

約数和(自身を含む): 48037017600

約数和(自身を除く): 27865115982

約数列:

[1, 2, 3, 6, 9, 11, 18, 22, 33, 66, 99, 198, 239, 439, 478, 717, 878, 971, 1317, 1434, 1942, 2151, 2629, 2634, 2913, 3951, 4302, 4829, 5258, 5826, 7887, 7902, 8739, 9658, 10681, 14487, 15774, 17478, 21362, 23661, 28974, 32043, 43461, 47322, 64086, 86922, 96129, 104921, 192258, 209842, 232069, 314763, 426269, 464138, 629526, 696207, 852538, 944289, 1154131, 1278807, 1392414, 1888578, 2088621, 2308262, 2552759, 2557614, 3462393, 3836421, 4177242, 4688959, 5105518, 6924786, 7658277, 7672842, 9377918, 10387179, 14066877, 15316554, 20774358, 22974831, 28133754, 42200631, 45949662, 84401262, 101878291, 203756582, 305634873, 611269746, 916904619, 1120661201, 1833809238, 2241322402, 3361983603, 6723967206, 10085950809, 20171901618]

約数ペア:

[(1, 20171901618), (2, 10085950809), (3, 6723967206), (6, 3361983603), (9, 2241322402), (11, 1833809238), (18, 1120661201), (22, 916904619), (33, 611269746), (66, 305634873), (99, 203756582), (198, 101878291), (239, 84401262), (439, 45949662), (478, 42200631), (717, 28133754), (878, 22974831), (971, 20774358), (1317, 15316554), (1434, 14066877), (1942, 10387179), (2151, 9377918), (2629, 7672842), (2634, 7658277), (2913, 6924786), (3951, 5105518), (4302, 4688959), (4829, 4177242), (5258, 3836421), (5826, 3462393), (7887, 2557614), (7902, 2552759), (8739, 2308262), (9658, 2088621), (10681, 1888578), (14487, 1392414), (15774, 1278807), (17478, 1154131), (21362, 944289), (23661, 852538), (28974, 696207), (32043, 629526), (43461, 464138), (47322, 426269), (64086, 314763), (86922, 232069), (96129, 209842), (104921, 192258)]