21076328

素因数分解:

$2^3\times 7^1\times {\mathrm{13}}^2\times {\mathrm{17}}^1\times {\mathrm{131}}^1$

素因数の和:187

約数の個数: 96

約数和(自身を含む): 52176960

約数和(自身を除く): 31100632

約数列:

[1, 2, 4, 7, 8, 13, 14, 17, 26, 28, 34, 52, 56, 68, 91, 104, 119, 131, 136, 169, 182, 221, 238, 262, 338, 364, 442, 476, 524, 676, 728, 884, 917, 952, 1048, 1183, 1352, 1547, 1703, 1768, 1834, 2227, 2366, 2873, 3094, 3406, 3668, 4454, 4732, 5746, 6188, 6812, 7336, 8908, 9464, 11492, 11921, 12376, 13624, 15589, 17816, 20111, 22139, 22984, 23842, 28951, 31178, 40222, 44278, 47684, 57902, 62356, 80444, 88556, 95368, 115804, 124712, 154973, 160888, 177112, 202657, 231608, 309946, 376363, 405314, 619892, 752726, 810628, 1239784, 1505452, 1621256, 2634541, 3010904, 5269082, 10538164, 21076328]

約数ペア:

[(1, 21076328), (2, 10538164), (4, 5269082), (7, 3010904), (8, 2634541), (13, 1621256), (14, 1505452), (17, 1239784), (26, 810628), (28, 752726), (34, 619892), (52, 405314), (56, 376363), (68, 309946), (91, 231608), (104, 202657), (119, 177112), (131, 160888), (136, 154973), (169, 124712), (182, 115804), (221, 95368), (238, 88556), (262, 80444), (338, 62356), (364, 57902), (442, 47684), (476, 44278), (524, 40222), (676, 31178), (728, 28951), (884, 23842), (917, 22984), (952, 22139), (1048, 20111), (1183, 17816), (1352, 15589), (1547, 13624), (1703, 12376), (1768, 11921), (1834, 11492), (2227, 9464), (2366, 8908), (2873, 7336), (3094, 6812), (3406, 6188), (3668, 5746), (4454, 4732)]