20879124

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{101}}^1\times {\mathrm{107}}^1$

素因数の和:245

約数の個数: 96

約数和(自身を含む): 59222016

約数和(自身を除く): 38342892

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 23, 28, 42, 46, 69, 84, 92, 101, 107, 138, 161, 202, 214, 276, 303, 321, 322, 404, 428, 483, 606, 642, 644, 707, 749, 966, 1212, 1284, 1414, 1498, 1932, 2121, 2247, 2323, 2461, 2828, 2996, 4242, 4494, 4646, 4922, 6969, 7383, 8484, 8988, 9292, 9844, 10807, 13938, 14766, 16261, 17227, 21614, 27876, 29532, 32421, 32522, 34454, 43228, 48783, 51681, 64842, 65044, 68908, 75649, 97566, 103362, 129684, 151298, 195132, 206724, 226947, 248561, 302596, 453894, 497122, 745683, 907788, 994244, 1491366, 1739927, 2982732, 3479854, 5219781, 6959708, 10439562, 20879124]

約数ペア:

[(1, 20879124), (2, 10439562), (3, 6959708), (4, 5219781), (6, 3479854), (7, 2982732), (12, 1739927), (14, 1491366), (21, 994244), (23, 907788), (28, 745683), (42, 497122), (46, 453894), (69, 302596), (84, 248561), (92, 226947), (101, 206724), (107, 195132), (138, 151298), (161, 129684), (202, 103362), (214, 97566), (276, 75649), (303, 68908), (321, 65044), (322, 64842), (404, 51681), (428, 48783), (483, 43228), (606, 34454), (642, 32522), (644, 32421), (707, 29532), (749, 27876), (966, 21614), (1212, 17227), (1284, 16261), (1414, 14766), (1498, 13938), (1932, 10807), (2121, 9844), (2247, 9292), (2323, 8988), (2461, 8484), (2828, 7383), (2996, 6969), (4242, 4922), (4494, 4646)]