21382043908

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{937}}^1\times {\mathrm{4229}}^1$

素因数の和:5260

約数の個数: 48

約数和(自身を含む): 39994819200

約数和(自身を除く): 18612775292

約数列:

[1, 2, 4, 19, 38, 71, 76, 142, 284, 937, 1349, 1874, 2698, 3748, 4229, 5396, 8458, 16916, 17803, 35606, 66527, 71212, 80351, 133054, 160702, 266108, 300259, 321404, 600518, 1201036, 1264013, 2528026, 3962573, 5056052, 5704921, 7925146, 11409842, 15850292, 22819684, 75288887, 150577774, 281342683, 301155548, 562685366, 1125370732, 5345510977, 10691021954, 21382043908]

約数ペア:

[(1, 21382043908), (2, 10691021954), (4, 5345510977), (19, 1125370732), (38, 562685366), (71, 301155548), (76, 281342683), (142, 150577774), (284, 75288887), (937, 22819684), (1349, 15850292), (1874, 11409842), (2698, 7925146), (3748, 5704921), (4229, 5056052), (5396, 3962573), (8458, 2528026), (16916, 1264013), (17803, 1201036), (35606, 600518), (66527, 321404), (71212, 300259), (80351, 266108), (133054, 160702)]