20173956117

素因数分解:

$3^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{71}}^1\times {\mathrm{491}}^1\times {\mathrm{1621}}^1$

素因数の和:2210

約数の個数: 64

約数和(自身を含む): 33095651328

約数和(自身を除く): 12921695211

約数列:

[1, 3, 7, 17, 21, 51, 71, 119, 213, 357, 491, 497, 1207, 1473, 1491, 1621, 3437, 3621, 4863, 8347, 8449, 10311, 11347, 25041, 25347, 27557, 34041, 34861, 58429, 82671, 104583, 115091, 175287, 192899, 244027, 345273, 578697, 592637, 732081, 795911, 805637, 1777911, 1956547, 2387733, 2416911, 4148459, 5571377, 5869641, 12445377, 13530487, 13695829, 16714131, 40591461, 41087487, 56509681, 94713409, 169529043, 284140227, 395567767, 960664577, 1186703301, 2881993731, 6724652039, 20173956117]

約数ペア:

[(1, 20173956117), (3, 6724652039), (7, 2881993731), (17, 1186703301), (21, 960664577), (51, 395567767), (71, 284140227), (119, 169529043), (213, 94713409), (357, 56509681), (491, 41087487), (497, 40591461), (1207, 16714131), (1473, 13695829), (1491, 13530487), (1621, 12445377), (3437, 5869641), (3621, 5571377), (4863, 4148459), (8347, 2416911), (8449, 2387733), (10311, 1956547), (11347, 1777911), (25041, 805637), (25347, 795911), (27557, 732081), (34041, 592637), (34861, 578697), (58429, 345273), (82671, 244027), (104583, 192899), (115091, 175287)]