21493848

素因数分解:

$2^3\times 3^1\times {\mathrm{17}}^1\times {\mathrm{139}}^1\times {\mathrm{379}}^1$

素因数の和:544

約数の個数: 64

約数和(自身を含む): 57456000

約数和(自身を除く): 35962152

約数列:

[1, 2, 3, 4, 6, 8, 12, 17, 24, 34, 51, 68, 102, 136, 139, 204, 278, 379, 408, 417, 556, 758, 834, 1112, 1137, 1516, 1668, 2274, 2363, 3032, 3336, 4548, 4726, 6443, 7089, 9096, 9452, 12886, 14178, 18904, 19329, 25772, 28356, 38658, 51544, 52681, 56712, 77316, 105362, 154632, 158043, 210724, 316086, 421448, 632172, 895577, 1264344, 1791154, 2686731, 3582308, 5373462, 7164616, 10746924, 21493848]

約数ペア:

[(1, 21493848), (2, 10746924), (3, 7164616), (4, 5373462), (6, 3582308), (8, 2686731), (12, 1791154), (17, 1264344), (24, 895577), (34, 632172), (51, 421448), (68, 316086), (102, 210724), (136, 158043), (139, 154632), (204, 105362), (278, 77316), (379, 56712), (408, 52681), (417, 51544), (556, 38658), (758, 28356), (834, 25772), (1112, 19329), (1137, 18904), (1516, 14178), (1668, 12886), (2274, 9452), (2363, 9096), (3032, 7089), (3336, 6443), (4548, 4726)]