20948488

素因数分解:

$2^3\times {\mathrm{11}}^2\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{67}}^1$

素因数の和:131

約数の個数: 96

約数和(自身を含む): 48837600

約数和(自身を除く): 27889112

約数列:

[1, 2, 4, 8, 11, 17, 19, 22, 34, 38, 44, 67, 68, 76, 88, 121, 134, 136, 152, 187, 209, 242, 268, 323, 374, 418, 484, 536, 646, 737, 748, 836, 968, 1139, 1273, 1292, 1474, 1496, 1672, 2057, 2278, 2299, 2546, 2584, 2948, 3553, 4114, 4556, 4598, 5092, 5896, 7106, 8107, 8228, 9112, 9196, 10184, 12529, 14003, 14212, 16214, 16456, 18392, 21641, 25058, 28006, 28424, 32428, 39083, 43282, 50116, 56012, 64856, 78166, 86564, 100232, 112024, 137819, 154033, 156332, 173128, 238051, 275638, 308066, 312664, 476102, 551276, 616132, 952204, 1102552, 1232264, 1904408, 2618561, 5237122, 10474244, 20948488]

約数ペア:

[(1, 20948488), (2, 10474244), (4, 5237122), (8, 2618561), (11, 1904408), (17, 1232264), (19, 1102552), (22, 952204), (34, 616132), (38, 551276), (44, 476102), (67, 312664), (68, 308066), (76, 275638), (88, 238051), (121, 173128), (134, 156332), (136, 154033), (152, 137819), (187, 112024), (209, 100232), (242, 86564), (268, 78166), (323, 64856), (374, 56012), (418, 50116), (484, 43282), (536, 39083), (646, 32428), (737, 28424), (748, 28006), (836, 25058), (968, 21641), (1139, 18392), (1273, 16456), (1292, 16214), (1474, 14212), (1496, 14003), (1672, 12529), (2057, 10184), (2278, 9196), (2299, 9112), (2546, 8228), (2584, 8107), (2948, 7106), (3553, 5896), (4114, 5092), (4556, 4598)]