20951112

素因数分解:

$2^3\times 3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{181}}^1$

素因数の和:263

約数の個数: 128

約数和(自身を含む): 66044160

約数和(自身を除く): 45093048

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 13, 14, 21, 24, 26, 28, 39, 42, 52, 53, 56, 78, 84, 91, 104, 106, 156, 159, 168, 181, 182, 212, 273, 312, 318, 362, 364, 371, 424, 543, 546, 636, 689, 724, 728, 742, 1086, 1092, 1113, 1267, 1272, 1378, 1448, 1484, 2067, 2172, 2184, 2226, 2353, 2534, 2756, 2968, 3801, 4134, 4344, 4452, 4706, 4823, 5068, 5512, 7059, 7602, 8268, 8904, 9412, 9593, 9646, 10136, 14118, 14469, 15204, 16471, 16536, 18824, 19186, 19292, 28236, 28779, 28938, 30408, 32942, 38372, 38584, 49413, 56472, 57558, 57876, 65884, 67151, 76744, 98826, 115116, 115752, 124709, 131768, 134302, 197652, 201453, 230232, 249418, 268604, 374127, 395304, 402906, 498836, 537208, 748254, 805812, 872963, 997672, 1496508, 1611624, 1745926, 2618889, 2993016, 3491852, 5237778, 6983704, 10475556, 20951112]

約数ペア:

[(1, 20951112), (2, 10475556), (3, 6983704), (4, 5237778), (6, 3491852), (7, 2993016), (8, 2618889), (12, 1745926), (13, 1611624), (14, 1496508), (21, 997672), (24, 872963), (26, 805812), (28, 748254), (39, 537208), (42, 498836), (52, 402906), (53, 395304), (56, 374127), (78, 268604), (84, 249418), (91, 230232), (104, 201453), (106, 197652), (156, 134302), (159, 131768), (168, 124709), (181, 115752), (182, 115116), (212, 98826), (273, 76744), (312, 67151), (318, 65884), (362, 57876), (364, 57558), (371, 56472), (424, 49413), (543, 38584), (546, 38372), (636, 32942), (689, 30408), (724, 28938), (728, 28779), (742, 28236), (1086, 19292), (1092, 19186), (1113, 18824), (1267, 16536), (1272, 16471), (1378, 15204), (1448, 14469), (1484, 14118), (2067, 10136), (2172, 9646), (2184, 9593), (2226, 9412), (2353, 8904), (2534, 8268), (2756, 7602), (2968, 7059), (3801, 5512), (4134, 5068), (4344, 4823), (4452, 4706)]