21142212

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{1019}}^1$

素因数の和:1065

約数の個数: 96

約数和(自身を含む): 63974400

約数和(自身を除く): 42832188

約数列:

[1, 2, 3, 4, 6, 7, 12, 13, 14, 19, 21, 26, 28, 38, 39, 42, 52, 57, 76, 78, 84, 91, 114, 133, 156, 182, 228, 247, 266, 273, 364, 399, 494, 532, 546, 741, 798, 988, 1019, 1092, 1482, 1596, 1729, 2038, 2964, 3057, 3458, 4076, 5187, 6114, 6916, 7133, 10374, 12228, 13247, 14266, 19361, 20748, 21399, 26494, 28532, 38722, 39741, 42798, 52988, 58083, 77444, 79482, 85596, 92729, 116166, 135527, 158964, 185458, 232332, 251693, 271054, 278187, 370916, 406581, 503386, 542108, 556374, 755079, 813162, 1006772, 1112748, 1510158, 1626324, 1761851, 3020316, 3523702, 5285553, 7047404, 10571106, 21142212]

約数ペア:

[(1, 21142212), (2, 10571106), (3, 7047404), (4, 5285553), (6, 3523702), (7, 3020316), (12, 1761851), (13, 1626324), (14, 1510158), (19, 1112748), (21, 1006772), (26, 813162), (28, 755079), (38, 556374), (39, 542108), (42, 503386), (52, 406581), (57, 370916), (76, 278187), (78, 271054), (84, 251693), (91, 232332), (114, 185458), (133, 158964), (156, 135527), (182, 116166), (228, 92729), (247, 85596), (266, 79482), (273, 77444), (364, 58083), (399, 52988), (494, 42798), (532, 39741), (546, 38722), (741, 28532), (798, 26494), (988, 21399), (1019, 20748), (1092, 19361), (1482, 14266), (1596, 13247), (1729, 12228), (2038, 10374), (2964, 7133), (3057, 6916), (3458, 6114), (4076, 5187)]